US2991567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for rotary sickle type lawnmowers
Assignee: Individual
•
Filing: 1958-05-12
•
Granted: 1961-07-11
•
Expires: 1978-05-12
Abstract
No abstract record available.
Inventors
- 👤 Albert H Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:36
CPC Classifications
A; A01; A01D; A01D42/00; A01D42/06; A01D42/08; A01D2101/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1601718A
Cited
US2118851A
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US2353094A
Cited
US2437116A
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US2752699A
Cited
US2706441A
Cited
US2777270A
Cited
US2863162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |