Patent US3921378A successfully refreshed from Google Patents.
Patent US1723305A successfully refreshed from Google Patents.
US1723305A
Expired / Lapsed
US
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Door closure
Assignee: Individual
•
Filing: 1927-07-25
•
Granted: 1929-08-06
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Expires: 1947-07-25
Abstract
No abstract record available.
Inventors
- 👤 Harry E Sipe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:33
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/18; E05; E05C; E05C19/00; E05C19/001; E05C19/002; E05C3/00; E05C3/12; E05C3/124; Y; Y10; Y10S; Y10S292/00; Y10S292/70; Y10T; Y10T292/00; Y10T292/08; Y10T292/68; Y10T292/688; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199
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) | 1932-08-05 | 1933-02-04 | 1933-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-08-05 | 1937-02-04 | 1937-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-08-05 | 1941-02-04 | 1941-08-06 | $7700.00 | Window Closed / Lapsed |