US1888302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll truing apparatus
Assignee: Individual
•
Filing: 1930-03-06
•
Granted: 1932-11-22
•
Expires: 1950-03-06
Abstract
No abstract record available.
Inventors
- 👤 Charles F Weaver
- 👤 Robert W Hyman
- 👤 George H Wheatley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:36
CPC Classifications
D; D06; D06C; D06C13/00; Y; Y10; Y10S; Y10S29/00; Y10S29/064; Y10S29/086; Y10S82/00; Y10S82/901; Y10T; Y10T409/00; Y10T409/30; Y10T409/304088; Y10T409/304536; Y10T409/305544; Y10T409/305656; Y10T409/305768; Y10T82/00; Y10T82/25; Y10T82/2572
Claims Analysis
Total Claims: 0
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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) | 1935-11-22 | 1936-05-23 | 1936-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-22 | 1940-05-23 | 1940-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-22 | 1944-05-23 | 1944-11-22 | $7700.00 | Window Closed / Lapsed |