Patent US2781822A successfully refreshed from Google Patents.
US2781822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair
Assignee: Individual
•
Filing: 1952-12-19
•
Granted: 1957-02-19
•
Expires: 1972-12-19
Abstract
No abstract record available.
Inventors
- 👤 Albert P Krikorian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:06
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/031; A47C1/034; A47C1/0342; A47C1/0347
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US210290A
Cited
US1626069A
Cited
US1697671A
Cited
US2208800A
Cited
US2567222A
Cited
US2604141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |