US2803847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum tree leaf collection unit
Assignee: Individual
•
Filing: 1954-03-05
•
Granted: 1957-08-27
•
Expires: 1974-03-05
Abstract
No abstract record available.
Inventors
- 👤 Clement P Hobbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:41
CPC Classifications
B; B65; B65F; B65F3/00; B65F3/02; B65F3/0206; B65F3/0209; A; A01; A01D; A01D51/00; E; E01; E01H; E01H1/00; E01H1/08; E01H1/0827; E01H1/0836
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2716501A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |