Patent US918730A successfully refreshed from Google Patents.
US918730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door-opener.
Assignee: Individual
•
Filing: 1908-04-20
•
Granted: 1909-04-20
•
Expires: 1928-04-20
Abstract
No abstract record available.
Inventors
- 👤 Kimbell I Bronson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:42
CPC Classifications
E; E05; E05B; E05B53/00; E05B53/001; Y; Y10; Y10T; Y10T292/00; Y10T292/175; Y10T292/19
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1912-04-19 | 1912-10-19 | 1913-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-04-19 | 1916-10-19 | 1917-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-04-19 | 1920-10-19 | 1921-04-20 | $7700.00 | Window Closed / Lapsed |