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US2689113A
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Assignee: Individual
•
Filing: 1952-11-07
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Granted: 1954-09-14
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Expires: 1972-11-07
Abstract
No abstract record available.
Inventors
- 👤 Casper W Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:04
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/20; A23G9/14; A23G9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US488995A
Cited
US2281944A
Cited
US2266032A
Cited
US2538716A
Cited
US2589350A
Cited
US2610478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |