US2647712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Level holder
Assignee: Individual
•
Filing: 1950-04-24
•
Granted: 1953-08-04
•
Expires: 1970-04-24
Abstract
No abstract record available.
Inventors
- 👤 Sandmoen Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:12
CPC Classifications
B; B25; B25H; B25H3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US143417A
Cited
US196942A
Cited
US378899A
Cited
US879052A
Cited
US1351007A
Cited
US1392120A
Cited
US1528883A
Cited
US2337914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |