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US2985973A
Expired / Lapsed
US
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Self-cleaning timber rake
Assignee: Individual
•
Filing: 1957-08-09
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Granted: 1961-05-30
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Expires: 1977-08-09
Abstract
No abstract record available.
Inventors
- 👤 John F Struemph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:21
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/08; A01G23/093; A01B; A01B43/00; E; E02; E02F; E02F5/00; E02F5/30; E02F5/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US187741A
Cited
US196744A
Cited
US294186A
Cited
US412731A
Cited
US2735197A
Cited
US890074A
Cited
US1779285A
Cited
US2674818A
Cited
US2737732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |