Patent US2109228A successfully refreshed from Google Patents.
US2109228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door stop and holder
Assignee: Individual
•
Filing: 1937-08-28
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Granted: 1938-02-22
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Expires: 1957-08-28
Abstract
No abstract record available.
Inventors
- 👤 Arnold W Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:15
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/46; E05C17/52; E05C17/525; E05F; E05F5/00; E05F5/06; Y; Y10; Y10S; Y10S292/00; Y10S292/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-02-21 | 1941-08-23 | 1942-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-02-21 | 1945-08-23 | 1946-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-02-21 | 1949-08-23 | 1950-02-22 | $7700.00 | Window Closed / Lapsed |