US3509944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sod cutting apparatus
Assignee: Cushman Inc
•
Filing: 1966-06-27
•
Granted: 1970-05-05
•
Expires: 1986-06-27
Abstract
No abstract record available.
Inventors
- 👤 Gerardus Johannes Brouwer
- 👤 John Van Dyken
- 👤 Klaas Oussoren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:03
CPC Classifications
A; A01; A01G; A01G20/00; A01G20/10; A01G20/12; A01G20/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1081686A
Cited
US1619875A
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US1732972A
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US1855998A
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US2345425A
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US2617347A
Cited
US2740211A
Cited
US3034586A
Cited
US2998081A
Cited
US3357499A
Cited
US3429377A
Cited
US3272559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |