Patent US2936189A successfully refreshed from Google Patents.
US2936189A
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US
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Receptacle safety latch means
Assignee: PETER BEGELMAN
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Filing: 1959-02-27
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Granted: 1960-05-10
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Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Pearson Edward Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:34
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/0014; Y; Y10; Y10S; Y10S292/00; Y10S292/65; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0825; Y10T292/0826; Y10T292/0833; Y10T292/0834; Y10T292/0836; Y10T292/0846
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) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |