US2674042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pantograph
Assignee: Individual
•
Filing: 1951-02-28
•
Granted: 1954-04-06
•
Expires: 1971-02-28
Abstract
No abstract record available.
Inventors
- 👤 Ott Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:24
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US310186A
Cited
US503934A
Cited
US834470A
Cited
US1508280A
Cited
GB228418A
Cited
US1707914A
Cited
US1943205A
Cited
US1900332A
Cited
US2132452A
Cited
GB625273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |