US661558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nut-lock.
Assignee: Individual
•
Filing: 1900-05-15
•
Granted: 1900-11-13
•
Expires: 1920-05-15
Abstract
No abstract record available.
Inventors
- 👤 Ervin A Shuff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:32
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/02; F16B39/04; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/931; Y10S411/945; Y10S411/946; Y10S411/95; Y10T; Y10T403/00; Y10T403/60; Y10T403/602; Y10T403/604
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) | 1903-11-13 | 1904-05-14 | 1904-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-11-13 | 1908-05-14 | 1908-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-11-13 | 1912-05-14 | 1912-11-13 | $7700.00 | Window Closed / Lapsed |