US2989788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner key for screen frames and the like
Assignee: Individual
•
Filing: 1959-03-09
•
Granted: 1961-06-27
•
Expires: 1979-03-09
Abstract
No abstract record available.
Inventors
- 👤 Kessler Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:38
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/52; E06B3/00; E06B3/96; E06B3/964; E06B3/968; E06B3/9681; E06B3/9682; F; F16; F16B; F16B2200/00; F16B2200/65; Y; Y10; Y10T; Y10T403/00; Y10T403/55; Y10T403/555; Y10T403/557
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) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |