Patent US2992360A successfully refreshed from Google Patents.
Patent US2334651A successfully refreshed from Google Patents.
Patent US2600402A successfully refreshed from Google Patents.
US2600402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pantograph machine tool
Assignee: Individual
•
Filing: 1949-03-31
•
Granted: 1952-06-17
•
Expires: 1969-03-31
Abstract
No abstract record available.
Inventors
- 👤 Cecil M Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:47
CPC Classifications
B; B24; B24B; B24B17/00; B24B17/02; B24B17/021; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301232
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2030850A
Cited
US2038455A
Cited
GB463767A
Cited
US2171211A
Cited
US2360772A
Cited
US2521958A
Cited
US2488088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |