Patent US2222565A successfully refreshed from Google Patents.
Patent US2911728A successfully refreshed from Google Patents.
US2911728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Comparison gauge for arcuate surfaces
Assignee: RR Donnelley and Sons Co
•
Filing: 1957-03-14
•
Granted: 1959-11-10
•
Expires: 1977-03-14
Abstract
No abstract record available.
Inventors
- 👤 Elmore H Mundell
- 👤 Gunnard E Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:53
CPC Classifications
B; B41; B41F; B41F27/00; B41F27/005; G; G01; G01B; G01B3/00; G01B3/10; G01B3/1041; G01B3/1046; G01B3/1048; G01B3/1061; G01B3/1069; G01B3/1084; G01B5/00; G01B5/02; G01B5/025; G01B3/1056
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |