US1340198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential gage
Assignee: JOHN C WHITE
•
Filing: 1918-07-05
•
Granted: 1920-05-18
•
Expires: 1938-07-05
Abstract
No abstract record available.
Inventors
- 👤 John B Wilkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:53
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/02; G01L7/04; Y; Y10; Y10S; Y10S116/00; Y10S116/42
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) | 1923-05-18 | 1923-11-17 | 1924-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-05-18 | 1927-11-17 | 1928-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-05-18 | 1931-11-17 | 1932-05-18 | $7700.00 | Window Closed / Lapsed |