US2904356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible couplings for pipes
Assignee: KAC Ltd
•
Filing: 1956-08-03
•
Granted: 1959-09-15
•
Expires: 1976-08-03
Abstract
No abstract record available.
Inventors
- 👤 Love John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:58
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0849; F16L27/0857
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE342692C
Cited
US406447A
Cited
GB227782A
Cited
US1821274A
Cited
FR658066A
Cited
US2451252A
Cited
GB627120A
Cited
GB692963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |