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US2194774A
Expired / Lapsed
US
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Operating and locking mechanism for window screens and the like
Assignee: Individual
•
Filing: 1939-05-25
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Granted: 1940-03-26
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Expires: 1959-05-25
Abstract
No abstract record available.
Inventors
- 👤 Seth A Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:06
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/56; E06B9/68; E06B9/52; E06B9/521; Y; Y10; Y10T; Y10T292/00; Y10T292/28
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) | 1943-03-26 | 1943-09-25 | 1944-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-03-26 | 1947-09-25 | 1948-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-03-26 | 1951-09-25 | 1952-03-26 | $7700.00 | Window Closed / Lapsed |