US2117841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thickness indicator for paper making machines
Assignee: FITZGERALD MANUFACTURING Co
•
Filing: 1935-09-19
•
Granted: 1938-05-17
•
Expires: 1955-09-19
Abstract
No abstract record available.
Inventors
- 👤 Patrick J Fitzgerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:50
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/02; G01B5/06; G01B5/068
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) | 1941-05-16 | 1941-11-15 | 1942-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-05-16 | 1945-11-15 | 1946-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-05-16 | 1949-11-15 | 1950-05-17 | $7700.00 | Window Closed / Lapsed |