US2945703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve and key therefor
Assignee: Individual
•
Filing: 1958-06-06
•
Granted: 1960-07-19
•
Expires: 1978-06-06
Abstract
No abstract record available.
Inventors
- 👤 Walter W Ballard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:33
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/52; F16K31/528; A; A01; A01G; A01G25/00; A01G25/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1150641A
Cited
US1597794A
Cited
US1996900A
Cited
US2173295A
Cited
US2218988A
Cited
US2278580A
Cited
US2427591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |