US2904976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible coupling
Assignee: Owens Corning
•
Filing: 1957-09-23
•
Granted: 1959-09-22
•
Expires: 1977-09-23
Abstract
No abstract record available.
Inventors
- 👤 Bay Ernest
- 👤 William B Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:22
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/56; F16D3/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1230646A
Cited
US1393582A
Cited
US1634965A
Cited
US1591063A
Cited
US1587403A
Cited
US2479278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |