Patent US2894919A successfully refreshed from Google Patents.
Patent US5665096A successfully refreshed from Google Patents.
US2813050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic boats and methods of manufacturing same
Assignee: Continental Copper and Steel Industries Inc
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Filing: 1953-07-21
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Granted: 1957-11-12
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Expires: 1973-07-21
Abstract
No abstract record available.
Inventors
- 👤 William F Hickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:30
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/12; B63; B63B; B63B5/00; B63B5/24; B29K; B29K2105/00; B29K2105/06; B29K2105/12; B29K2105/128; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
122 words
A METHOD OF MAKING A PLASTIC BOAT WHICH COMPRISES PROVIDING A BOAT FRAMEWORK, AND ALSO PROVIDING A KEEL AND EDGE STRUCTURE, LAYING A LAMINATED STRUCTURE CONSISTING OF OUTSIDE WIRE SCREENING AND INSIDE GLASS FIBRE MATTING THEREON AND THEN SPRAYING THE SAME WITH A AIR HARDENING PLASTIC SOLUTION AND REMOVING THE PLASTIC BOAT FROM THE FRAMEWORK, SAID WIRE SCREENING CONSISTING OF A FORM-RETAINING STIFF WIRE MESH COMPOSED OF WOVEN WIRE HAVING A DIAMETER OF 1/28 TO 1/16 OF AN INCH WITH THE STRANDS EXTENDING TRANSVERSELY TO THE MAJOR AXIS OF THE BOAT BEING OF SUBSTANTIALLY GREATER STIFFNESS THAN THE STRANDS WHICH EXTEND LONGITUDINALLY AND PARALLEL TO THE MAJOR AXIS OF THE BOAT, AND SAID SCREENING BEING WELDED TO SAID KEEL AND EDGE STRUCTURE
Claim 2
Independent Claim
122 words
A METHOD OF MAKING A PLASTIC BOAT WHICH COMPRISES PROVIDING A BOAT FRAMEWORK, AND ALSO PROVIDING A KEEL AND EDGE STRUCTURE, LAYING A LAMINATED STRUCTURE CONSISTING OF OUTSIDE WIRE SCREENING AND INSIDE GLASS FIBRE MATTING THEREON AND THEN SPRAYING THE SAME WITH A AIR HARDENING PLASTIC SOLUTION AND REMOVING THE PLASTIC BOAT FROM THE FRAMEWORK, SAID WIRE SCREENING CONSISTING OF A FORM-RETAINING STIFF WIRE MESH COMPOSED OF WOVEN WIRE HAVING A DIAMETER OF 1/28 TO 1/16 OF AN INCH WITH THE STRANDS EXTENDING TRANSVERSELY TO THE MAJOR AXIS OF THE BOAT BEING OF SUBSTANTIALLY GREATER STIFFNESS THAN THE STRANDS WHICH EXTEND LONGITUDINALLY AND PARALLEL TO THE MAJOR AXIS OF THE BOAT, AND SAID SCREENING BEING WELDED TO SAID KEEL AND EDGE STRUCTURE
Claim 3
Dependent Claim
115 words
A PLASTIC BOAT HAVING A FRAMEWORK WITH KEEL AND EDGE STRUCTURES AND COMPRISING A SCREEN FORMING AN INTERIOR REINFORCING SKELETON FOR THE BOAT AND A PLASTIC SPRAY COAT COVERING AND IMPREGNATING SAID FRAMEWORK, SAID SCREEN CONSISTING OF ALTERNATE LAYERS OF OUTSIDE WIRE MESH AND INSIDE GLASS FIBRE MATTING, SAID WIRE SCREENING CONSISTING OF A FORM-RETAINING STIFF WIRE MESH COMPOSED OF WOVEN WIRE HAVING A DIAMETER OF 1/28 TO 1/16 OF AN INCH WITH THE STRANDS, EXTENDING TRANSVERSELY TO THE MAJOR AXIS OF THE BOAT BEING OF SUBSTANTIALLY GREATER STIFFNESS THAN THE STRANDS WHICH EXTEND LONGITUDINALLY AND PARALLEL TO THE MAJOR AXIS OF THE BOAT, AND SAID SCREENING BEING WELDED TO SAID KEEL AND EDGE STRUCTURE.
Claim 4
Dependent Claim
115 words
A PLASTIC BOAT HAVING A FRAMEWORK WITH KEEL AND EDGE STRUCTURES AND COMPRISING A SCREEN FORMING AN INTERIOR REINFORCING SKELETON FOR THE BOAT AND A PLASTIC SPRAY COAT COVERING AND IMPREGNATING SAID FRAMEWORK, SAID SCREEN CONSISTING OF ALTERNATE LAYERS OF OUTSIDE WIRE MESH AND INSIDE GLASS FIBRE MATTING, SAID WIRE SCREENING CONSISTING OF A FORM-RETAINING STIFF WIRE MESH COMPOSED OF WOVEN WIRE HAVING A DIAMETER OF 1/28 TO 1/16 OF AN INCH WITH THE STRANDS, EXTENDING TRANSVERSELY TO THE MAJOR AXIS OF THE BOAT BEING OF SUBSTANTIALLY GREATER STIFFNESS THAN THE STRANDS WHICH EXTEND LONGITUDINALLY AND PARALLEL TO THE MAJOR AXIS OF THE BOAT, AND SAID SCREENING BEING WELDED TO SAID KEEL AND EDGE STRUCTURE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |