US2529998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush spreading attachment for tractors
Assignee: Individual
•
Filing: 1950-07-17
•
Granted: 1950-11-14
•
Expires: 1970-07-17
Abstract
No abstract record available.
Inventors
- 👤 John H Q Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:35
CPC Classifications
A; A01; A01B; A01B71/00; A01B71/08; A01G; A01G23/00; A01G23/02; A01G23/08; A01G23/093; B; B62; B62D; B62D49/00; B62D49/06; B62D49/065; Y; Y10; Y10S; Y10S293/00; Y10S293/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US355471A
Cited
US643370A
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US975265A
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US1692342A
Cited
US1665536A
Cited
US1788879A
Cited
US2314214A
Cited
US2355204A
Cited
US2508284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |