US1383982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring-balance for window-sashes
Assignee: OM Edwards Co Inc
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Filing: 1916-10-27
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Granted: 1921-07-05
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Expires: 1936-10-27
Abstract
No abstract record available.
Inventors
- 👤 Edward F Chaffee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:19
CPC Classifications
E; E05; E05D; E05D13/00; E05D13/10; E05D13/12; E05D13/123; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148; Y; Y10; Y10S; Y10S292/00; Y10S292/70
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) | 1924-07-04 | 1925-01-03 | 1925-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-07-04 | 1929-01-03 | 1929-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-07-04 | 1933-01-03 | 1933-07-05 | $7700.00 | Window Closed / Lapsed |