US3438666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latching mechanism with temperature-responsive blocking device
Assignee: Amerock Corp
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Filing: 1967-05-10
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Granted: 1969-04-15
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Expires: 1987-05-10
Abstract
No abstract record available.
Inventors
- 👤 Karl H Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:09
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/02; F24C15/022; Y; Y10; Y10S; Y10S292/00; Y10S292/69; Y10T; Y10T292/00; Y10T292/03; Y10T292/08; Y10T292/0886; Y10T292/0887; Y10T292/089; Y10T292/0911; Y10T292/0913; Y10T292/0914; Y10T292/0917; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T292/1092
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) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |