US1358977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door-controlling device
Assignee: NORTON DOOR CHECK Co
•
Filing: 1920-05-03
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Granted: 1920-11-16
•
Expires: 1940-05-03
Abstract
No abstract record available.
Inventors
- 👤 Lewis C Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:31
CPC Classifications
A; A62; A62C; A62C2/00; A62C2/06; A62C2/12; Y; Y10; Y10S; Y10S16/00; Y10S16/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1923-11-16 | 1924-05-17 | 1924-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-11-16 | 1928-05-17 | 1928-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-11-16 | 1932-05-17 | 1932-11-16 | $7700.00 | Window Closed / Lapsed |