US2809864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1953-09-04
•
Granted: 1957-10-15
•
Expires: 1973-09-04
Abstract
No abstract record available.
Inventors
- 👤 William C Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:43
CPC Classifications
A; A01; A01G; A01G3/00; A01G3/06; Y; Y10; Y10S; Y10S30/00; Y10S30/05; Y10S30/07; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/564
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US106437A
Cited
US1480151A
Cited
US1857383A
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US1791957A
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US1866073A
Cited
US2080341A
Cited
US2615246A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |