US2804688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for drawing or scribing circular lines
Assignee: Individual
•
Filing: 1953-08-06
•
Granted: 1957-09-03
•
Expires: 1973-08-06
Abstract
No abstract record available.
Inventors
- 👤 Holger A Kultner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:16
CPC Classifications
B; B25; B25H; B25H7/00; B25H7/04; B43; B43L; B43L9/00; B43L9/02; B43L9/04; B43L9/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US588129A
Cited
US671690A
Cited
US838463A
Cited
US1986551A
Cited
US2108251A
Cited
US2349670A
Cited
AT169674B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |