US3003568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
merritt etal
Assignee: —
•
Filing: —
•
Granted: 1961-10-10
•
Expires: 1978-10-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:34
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/02; A01B63/10; A01B63/111; A01B63/1117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US447749A
Cited
US488863A
Cited
US2679199A
Cited
US2714346A
Cited
US2722873A
Cited
US2754742A
Cited
US2722874A
Cited
US2786402A
Cited
FR1070086A
Cited
US2887167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |