US2841254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self locking window casing
Assignee: Individual
•
Filing: 1955-12-06
•
Granted: 1958-07-01
•
Expires: 1975-12-06
Abstract
No abstract record available.
Inventors
- 👤 Beverly R Millner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:58
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/04; E06B1/12; E06B1/18; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/44; E06B2003/4438; E06B2003/4453; E06B2003/4492
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1659657A
Cited
US2626658A
Cited
US2614665A
Cited
US2613403A
Cited
US2742117A
Cited
US2691803A
Cited
US2765057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |