US2478677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Micrometer surface gauge
Assignee: Individual
•
Filing: 1944-10-30
•
Granted: 1949-08-09
•
Expires: 1964-10-30
Abstract
No abstract record available.
Inventors
- 👤 Jr William S Van Brocklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:33
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/02; G01B5/06; G01B5/061; G01B5/063
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1317747A
Cited
US634205A
Cited
US1291711A
Cited
US2135912A
Cited
US2206972A
Cited
US2247797A
Cited
US2335513A
Cited
US2346840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-08 | 1953-02-07 | 1953-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-08 | 1957-02-07 | 1957-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-08 | 1961-02-07 | 1961-08-09 | $7700.00 | Window Closed / Lapsed |