US3391522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mowing machines
Assignee: Individual
•
Filing: 1965-07-06
•
Granted: 1968-07-09
•
Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Zweegers Petrus Wilhelmus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:30
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/64; A01D34/66; A01D34/74; A01D34/835; A01D34/86
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1432014A
Cited
US1656105A
Cited
US2489059A
Cited
US2489204A
Cited
US2495032A
Cited
US2697319A
Cited
US2953892A
Cited
US3049852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |