US2921353A
Expired / Lapsed
US
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Assignee: Pacific Scientific Co
•
Filing: 1956-04-04
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Granted: 1960-01-19
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Expires: 1976-04-04
Abstract
No abstract record available.
Inventors
- 👤 Clifford E Cushman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:28
CPC Classifications
A; A44; A44B; A44B11/00; A44B11/25; A44B11/2503; A44B11/2542; B; B64; B64D; B64D17/00; B64D17/22; B64D17/30; B64D17/32; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45602; Y10T24/45607; Y10T24/45613; Y10T24/45618
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) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |