Patent US2073910A successfully refreshed from Google Patents.
US2073910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch for window operators
Assignee: Individual
•
Filing: 1935-09-19
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Granted: 1937-03-16
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Expires: 1955-09-19
Abstract
No abstract record available.
Inventors
- 👤 Adolph E Strom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:21
CPC Classifications
E; E05; E05D; E05D13/00; E05D13/04; E05D13/06; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148; Y; Y10; Y10T; Y10T292/00; Y10T292/306; Y10T292/307
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) | 1940-03-15 | 1940-09-14 | 1941-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-15 | 1944-09-14 | 1945-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-15 | 1948-09-14 | 1949-03-16 | $7700.00 | Window Closed / Lapsed |