US2987057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starter mechanism
Assignee: ALFRED H GREENING
•
Filing: 1959-08-28
•
Granted: 1961-06-06
•
Expires: 1979-08-28
Abstract
No abstract record available.
Inventors
- 👤 Philip E Kopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:01
CPC Classifications
F; F02; F02N; F02N5/00; F02N5/02; F02N3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1006064A
Cited
US1135694A
Cited
US1511082A
Cited
US2042841A
Cited
US2566539A
Cited
US2692665A
Cited
US2744586A
Cited
US2922411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |