Patent US2460923A successfully refreshed from Google Patents.
US2460923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Christopherson
Assignee: —
•
Filing: —
•
Granted: 1949-02-08
•
Expires: 1966-02-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:28
CPC Classifications
A; A47; A47B; A47B88/00; A47B88/40; A47B88/49; A47B88/483; A47B88/487; A47B2210/00; A47B2210/0002; A47B2210/0029; A47B2210/0043; A47B2210/0051; A47B2210/0056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US771319A
Cited
US810823A
Cited
US1089514A
Cited
US1212992A
Cited
US1686472A
Cited
US1927429A
Cited
US2343692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-08 | 1952-08-09 | 1953-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-08 | 1956-08-09 | 1957-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-08 | 1960-08-09 | 1961-02-08 | $7700.00 | Window Closed / Lapsed |