US2913744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
gregersen
Assignee: —
•
Filing: —
•
Granted: 1959-11-24
•
Expires: 1976-11-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:47
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/008; E; E01; E01H; E01H1/00; E01H1/02; E01H1/05; E01H1/053; E01H1/056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US229390A
Cited
US959380A
Cited
US982570A
Cited
US1133653A
Cited
GB116429A
Cited
US2099819A
Cited
US2395640A
Cited
US2517359A
Cited
GB695207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |