US3501174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary union
Assignee: Filton Ltd
•
Filing: 1968-08-21
•
Granted: 1970-03-17
•
Expires: 1988-08-21
Abstract
No abstract record available.
Inventors
- 👤 Gordon Richard Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:01
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0804; F16L27/0808; F16L27/0812; F16L27/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA660353A
Cited
US2088418A
Cited
US2182263A
Cited
US2381432A
Cited
US2407745A
Cited
US2418653A
Cited
US2805087A
Cited
US2836439A
Cited
GB958505A
Cited
US3403949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |