US2909320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
malavazos
Assignee: —
•
Filing: —
•
Granted: 1959-10-20
•
Expires: 1976-10-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:27
CPC Classifications
F; F16; F16K; F16K31/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2278863A
Cited
US2325388A
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US2389182A
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US2399170A
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US2527467A
Cited
US2570456A
Cited
US2714989A
Cited
US2733011A
Cited
US2733010A
Cited
CH203473A
Cited
US2265628A
Cited
CH218923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |