US2905485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valved coupling
Assignee: ZALO Manufacturing Co
•
Filing: 1956-12-18
•
Granted: 1959-09-22
•
Expires: 1976-12-18
Abstract
No abstract record available.
Inventors
- 👤 Theodore S Zajac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:57
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/22; F16L37/28; F16L37/38; F16L37/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1875679A
Cited
US2102774A
Cited
US2131271A
Cited
US2265267A
Cited
US2278580A
Cited
US2344739A
Cited
US2459477A
Cited
US2461818A
Cited
US2761469A
Cited
US2744770A
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 |