US929233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Letter-opener.
Assignee: Individual
•
Filing: 1908-07-14
•
Granted: 1909-07-27
•
Expires: 1928-07-14
Abstract
No abstract record available.
Inventors
- 👤 Frank E Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:32
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/0011; H05K3/0044; H05K3/0052; Y; Y10; Y10S; Y10S30/00; Y10S30/03; Y10T; Y10T83/00; Y10T83/748; Y10T83/7593; Y10T83/869; Y10T83/8776; Y10T83/8785; Y10T83/8821; Y10T83/8841; Y10T83/8853
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) | 1912-07-26 | 1913-01-25 | 1913-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-07-26 | 1917-01-25 | 1917-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-07-26 | 1921-01-25 | 1921-07-27 | $7700.00 | Window Closed / Lapsed |