US3074585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessel
Assignee: 3M Co
•
Filing: 1959-11-20
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Granted: 1963-01-22
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Expires: 1979-11-20
Abstract
No abstract record available.
Inventors
- 👤 Robert D Koontz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:48
CPC Classifications
F; F17; F17C; F17C1/00; F17C1/16; B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/602; B29L; B29L2031/00; B29L2031/712; B29L2031/7154; B29L2031/7156; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0604; F17C2203/0634; F17C2203/0658; F17C2203/066; F17C2203/0663; F17C2203/0673; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0305; F17C2205/0388; F17C2205/0394; F17C2205/0397; F17C2209/00; F17C2209/21; F17C2209/2154; F17C2209/2163; F17C2270/00; F17C2270/01; F17C2270/0186; F17C2270/0197; F17C2270/05; Y; Y10; Y10S; Y10S60/00; Y10S60/909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A REINFORCED PLASTIC TUBULAR BODY COMPRISING A PLURALITY OF STAVE-LIKE SEGMENTAL STRIPS DISPOSED IN EDGE TO EDGE ABUTMENT TO FORM A TUBULAR SHELL, SAID STRIPS AT ONE END OF SAID SHELL EACH BEING FORMED WITH A TAPERED RADIALLY INWARDLY DIRECTED SEGMENTAL EXTENT OF REDUCING WIDTH AND INCREASING THICKNESS TO FORM AN END WALL FOR SAID SHELL, SAID STRIPS BEING FORMED SUBSTANTIALLY ENTIRELY OF CONTINUOUS RESIN BONDED FILAMENTS EXTENDING LONGITUDINALLY FROM ONE END THEREOF TO THE OTHER, AND MEANS FOR RETAINING SAID STRIPS IN ASSEMBLED RELATION COMPRISING MEANS SEALINGLY BONDING THE MATING EDGES OF SAID STRIPS TO EACH OTHER THROUGHOUT THE LENGTH OF SAID STRIPS, AND CIRCUMFERENTIALLY WOUND FILAMENT MEANS OVERLAYING A SURFACE OF SAID SHELL.
Claim 2
Dependent Claim
115 words
A REINFORCED PLASTIC TUBULAR BODY COMPRISING A PLURALITY OF STAVE-LIKE SEGMENTAL STRIPS DISPOSED IN EDGE TO EDGE ABUTMENT TO FORM A TUBULAR SHELL, SAID STRIPS AT ONE END OF SAID SHELL EACH BEING FORMED WITH A TAPERED RADIALLY INWARDLY DIRECTED SEGMENTAL EXTENT OF REDUCING WIDTH AND INCREASING THICKNESS TO FORM AN END WALL FOR SAID SHELL, SAID STRIPS BEING FORMED SUBSTANTIALLY ENTIRELY OF CONTINUOUS RESIN BONDED FILAMENTS EXTENDING LONGITUDINALLY FROM ONE END THEREOF TO THE OTHER, AND MEANS FOR RETAINING SAID STRIPS IN ASSEMBLED RELATION COMPRISING MEANS SEALINGLY BONDING THE MATING EDGES OF SAID STRIPS TO EACH OTHER THROUGHOUT THE LENGTH OF SAID STRIPS, AND CIRCUMFERENTIALLY WOUND FILAMENT MEANS OVERLAYING A SURFACE OF SAID SHELL.
References Cited (Backward Citations)
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US2744043A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |