US2622834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shelving
Assignee: Individual
•
Filing: 1948-02-09
•
Granted: 1952-12-23
•
Expires: 1968-02-09
Abstract
No abstract record available.
Inventors
- 👤 Sparring Birger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:53
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/30; A47B57/40; A47B57/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US977609A
Cited
US1229427A
Cited
US1764766A
Cited
US1853018A
Cited
CH177435A
Cited
US2218894A
Cited
US2336604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |