US3417805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency opening protective gate
Assignee: Individual
•
Filing: 1967-07-19
•
Granted: 1968-12-24
•
Expires: 1987-07-19
Abstract
No abstract record available.
Inventors
- 👤 Kaufman Stanley
- 👤 Kaufman David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:59
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/06; E06B9/0607; E06B9/0615; E06B9/0623; E06B9/0646; E06B9/0653; E06B9/0661; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1049; 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) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |