US197467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in nut and bolt locks
Assignee: —
•
Filing: —
•
Granted: 1877-11-27
•
Expires: 1894-11-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:48
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B39/30; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/938
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) | 1880-11-26 | 1881-05-28 | 1881-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1884-11-26 | 1885-05-28 | 1885-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1888-11-26 | 1889-05-28 | 1889-11-27 | $7700.00 | Window Closed / Lapsed |