US3527441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
External valve adjustment means
Assignee: Individual
•
Filing: 1967-10-06
•
Granted: 1970-09-08
•
Expires: 1987-10-06
Abstract
No abstract record available.
Inventors
- 👤 Robert M Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:45
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/445; G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; G05D16/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1158420A
Cited
US1396196A
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FR643096A
Cited
US2600976A
Cited
US2985425A
Cited
US3093155A
Cited
US3291440A
Cited
US3367626A
Cited
US3374985A
Cited
US3311342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |