Patent US2669426A successfully refreshed from Google Patents.
US2669426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power unit
Assignee: Individual
•
Filing: 1950-10-26
•
Granted: 1954-02-16
•
Expires: 1970-10-26
Abstract
No abstract record available.
Inventors
- 👤 Alfred A Anglemyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:57
CPC Classifications
B; B66; B66D; B66D3/00; B66D3/02; B66D2700/00; B66D2700/02; B66D2700/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US470674A
Cited
US676994A
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US1124938A
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US1060103A
Cited
US1530844A
Cited
US1707560A
Cited
US2270271A
Cited
US2506029A
Cited
US2501253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |