US2926934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling
Assignee: Weatherhead Co
•
Filing: 1956-08-27
•
Granted: 1960-03-01
•
Expires: 1976-08-27
Abstract
No abstract record available.
Inventors
- 👤 Vincent A Gill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:41
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/1007; F16L37/00; F16L37/22; F16L37/23; F16L37/28; F16L37/30; F16L37/32; F16L37/33; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87941; Y10T137/87949; Y10T137/87957; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735696A
Cited
US1884155A
Cited
US1867559A
Cited
US2133916A
Cited
US2382975A
Cited
US2503495A
Cited
US2674469A
Cited
US2727759A
Cited
US2690918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |