US2800423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded article of stretchable glass cloth
Assignee: DE SWART DEVELOPMENT Co
•
Filing: 1954-10-18
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Granted: 1957-07-23
•
Expires: 1974-10-18
Abstract
No abstract record available.
Inventors
- 👤 Swart Jan De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:54
CPC Classifications
B; B29; B29B; B29B15/00; B29B15/08; B29C; B29C51/00; B29C51/002; B29C51/004; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/34; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/1057; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24314; Y10T428/24628; Y10T428/24636; Y10T428/4935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A PLASTIC SHEET HAVING A COMPOUND CURVATURE AND REINFORCED WITH A PLURALITY OF CLOTH FABRIC LAYERS WOVEN FROM NON-ELASTIC FIBERS, EACH LAYER OF FABRIC BEING PROVIDED WITH A PLURALITY OF SLITS WHICH PENETRATE THE FABRIC, A PORTION OF THE SLITS IN EACH LAYER BEING TRANSVERSE TO THE OTHER SLITS.
Claim 2
Dependent Claim
49 words
A PLASTIC SHEET HAVING A COMPOUND CURVATURE AND REINFORCED WITH A PLURALITY OF CLOTH FABRIC LAYERS WOVEN FROM NON-ELASTIC FIBERS, EACH LAYER OF FABRIC BEING PROVIDED WITH A PLURALITY OF SLITS WHICH PENETRATE THE FABRIC, A PORTION OF THE SLITS IN EACH LAYER BEING TRANSVERSE TO THE OTHER SLITS.
References Cited (Backward Citations)
US1433077A
Cited
US2046988A
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US2202014A
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US2423076A
Cited
US2489541A
Cited
US2556071A
Cited
US2653889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |