Patent US1203145A successfully refreshed from Google Patents.
US1203145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nut for mining-machines.
Assignee: Individual
•
Filing: 1916-02-17
•
Granted: 1916-10-31
•
Expires: 1936-02-17
Abstract
No abstract record available.
Inventors
- 👤 Charles S Sheppard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:16
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/08; E21B19/081; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19735; Y10T74/1974
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) | 1919-10-31 | 1920-05-01 | 1920-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-10-31 | 1924-05-01 | 1924-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-10-31 | 1928-05-01 | 1928-10-31 | $7700.00 | Window Closed / Lapsed |