US3033514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation gate valve
Assignee: Individual
•
Filing: 1959-03-09
•
Granted: 1962-05-08
•
Expires: 1979-03-09
Abstract
No abstract record available.
Inventors
- 👤 Gottlieb W Grosch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:00
CPC Classifications
F; F16; F16K; F16K1/00; A; A01; A01G; A01G25/00; A01G25/16; F16L; F16L41/00; F16L41/08; F16L41/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1485579A
Cited
US1848632A
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GB101689A
Cited
FR493089A
Cited
US1345032A
Cited
US1542645A
Cited
GB336735A
Cited
US2439539A
Cited
US2697582A
Cited
US2764385A
Cited
US2830260A
Cited
US2800912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |