Patent US1638752A successfully refreshed from Google Patents.
Patent US3392997A successfully refreshed from Google Patents.
US3392997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stay mechanisms
Assignee: United Carr Inc
•
Filing: 1965-05-05
•
Granted: 1968-07-16
•
Expires: 1985-05-05
Abstract
No abstract record available.
Inventors
- 👤 Seckerson Clifford Alexander
- 👤 Fernberg Paul Carl Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:19
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/12; E05C17/16; Y; Y10; Y10T; Y10T292/00; Y10T292/28; Y10T292/289; Y10T292/299
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) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |