US2477599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuating device
Assignee: PHOTOSWITCH Inc
•
Filing: 1944-03-18
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Granted: 1949-08-02
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Expires: 1964-03-18
Abstract
No abstract record available.
Inventors
- 👤 Carl F Hammann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:29
CPC Classifications
F; F16; F16H; F16H31/00; F16H31/003; F16H31/005; G; G05; G05G; G05G17/00; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/1558; Y10T74/1577; Y10T74/1579
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) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |