Patent US1430933A successfully refreshed from Google Patents.
US1430933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder grinding and reaming machine
Assignee: Individual
•
Filing: 1921-03-25
•
Granted: 1922-10-03
•
Expires: 1941-03-25
Abstract
No abstract record available.
Inventors
- 👤 Guy M Brandt
- 👤 Lawrence V Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:20
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/002; Y; Y10; Y10S; Y10S408/00; Y10S408/709; Y10T; Y10T29/00; Y10T29/51; Y10T29/5104; Y10T29/5105; Y10T29/5108; Y10T408/00; Y10T408/34; Y10T408/352; Y10T408/353; Y10T408/55; Y10T408/557; Y10T408/558; Y10T408/5583; Y10T408/5586; Y10T408/81
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) | 1925-10-02 | 1926-04-03 | 1926-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-10-02 | 1930-04-03 | 1930-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-10-02 | 1934-04-03 | 1934-10-03 | $7700.00 | Window Closed / Lapsed |