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US2735455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
forsberg
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
•
Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:08
CPC Classifications
B; B23; B23Q; B23Q9/00; B23Q9/0014; B23Q9/0042; B23Q9/005; Y; Y10; Y10T; Y10T83/00; Y10T83/667; Y10T83/68; Y10T83/687; Y10T83/6905; Y10T83/6945; Y10T83/695; Y10T83/696; Y10T83/6975; Y10T83/768; Y10T83/7755; Y10T83/7763; Y10T83/7768; Y10T83/7772; Y10T83/869; Y10T83/8763
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US113531A
Cited
US778178A
Cited
US1457492A
Cited
US1700189A
Cited
US1828043A
Cited
US1911045A
Cited
US1960590A
Cited
US2556137A
Cited
US2639737A
Cited
US2625184A
Cited
US2651333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |