US2684221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument mounting
Assignee: WOLLAM AIRCRAFT AND MARINE PRO
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Filing: 1952-06-12
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Granted: 1954-07-20
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Expires: 1972-06-12
Abstract
No abstract record available.
Inventors
- 👤 Carl K Wollam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:09
CPC Classifications
G; G01; G01D; G01D11/00; G01D11/30; G01D11/305; F; F16; F16B; F16B2200/00; F16B2200/10; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20588
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |