Patent US3372623A successfully refreshed from Google Patents.
US3372623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake operator mechanical release
Assignee: Certainteed LLC
•
Filing: 1966-01-19
•
Granted: 1968-03-12
•
Expires: 1986-01-19
Abstract
No abstract record available.
Inventors
- 👤 Charles G Wearden
- 👤 Robert H Kline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:27
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/08; B60T17/085; B60T17/086
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |