US2843974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incremental feed mechanisms
Assignee: AIRBORNE INSTR LAB Inc
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Filing: 1957-03-25
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Granted: 1958-07-22
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Expires: 1977-03-25
Abstract
No abstract record available.
Inventors
- 👤 Greig S Butterworth
- 👤 Edward S Silver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:01
CPC Classifications
G; G05; G05G; G05G23/00; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/28; B23Q1/287; B23Q1/34; B23Q1/44; B23Q1/56; B23Q1/60; B23Q1/601; B23Q5/00; B23Q5/22; B23Q5/34; B23Q5/50; B24; B24B; B24B47/00; B24B47/20; G05G2700/00; G05G2700/02; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1558; Y10T74/1587; Y10T74/1598
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |