US2690341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1952-10-14
•
Granted: 1954-09-28
•
Expires: 1972-10-14
Abstract
No abstract record available.
Inventors
- 👤 Fujita Frank Hideo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:48
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/18; A; A01; A01D; A01D46/00; A01D46/24; A01D46/243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US689932A
Cited
US1393876A
Cited
US1459898A
Cited
GB336118A
Cited
US2035535A
Cited
GB588772A
Cited
US2578793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |