US3023563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double sickle reciprocating cutting assembly driven by a free piston internal combustion engine
Assignee: Individual
•
Filing: 1960-01-14
•
Granted: 1962-03-06
•
Expires: 1980-01-14
Abstract
No abstract record available.
Inventors
- 👤 William L Tenney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:48
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/02; A01D34/13; A01D34/135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US128456A
Cited
US1769254A
Cited
US1770091A
Cited
US2162416A
Cited
US2575038A
Cited
US2628599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |