US1567979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock
Assignee: Individual
•
Filing: 1924-01-26
•
Granted: 1925-12-29
•
Expires: 1944-01-26
Abstract
No abstract record available.
Inventors
- 👤 Clara L Northrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:16
CPC Classifications
E; E05; E05B; E05B35/00; E05B35/003; E05B35/004; Y; Y10; Y10S; Y10S70/00; Y10S70/37; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7588; Y10T70/7593; Y10T70/7599; Y10T70/7605; Y10T70/7667; Y10T70/7706; Y10T70/778; Y10T70/7791; Y10T70/7802; Y10T70/7825; Y10T70/7915; Y10T70/7932; Y10T70/7944
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) | 1928-12-28 | 1929-06-29 | 1929-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-12-28 | 1933-06-29 | 1933-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-12-28 | 1937-06-29 | 1937-12-29 | $7700.00 | Window Closed / Lapsed |