US2513069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doorkeeper
Assignee: Individual
•
Filing: 1947-10-09
•
Granted: 1950-06-27
•
Expires: 1967-10-09
Abstract
No abstract record available.
Inventors
- 👤 Weissinger Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:12
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/02; E05C19/024; Y; Y10; Y10S; Y10S292/00; Y10S292/19; Y10T; Y10T292/00; Y10T292/08; Y10T292/0876; Y10T292/0883; Y10T292/0908; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T292/1086; Y10T292/1092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US133838A
Cited
US307281A
Cited
FR375434A
Cited
US930534A
Cited
US1543078A
Cited
US1500435A
Cited
US2016519A
Cited
US2051412A
Cited
US2320298A
Cited
US2415587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |