US2473319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasket and gasket composition
Assignee: Dryden Rubber Co
•
Filing: 1947-11-10
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Granted: 1949-06-14
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Expires: 1967-11-10
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Winkelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:03
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3284
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2358290A
Cited
US2373461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |