US2931434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding glass door construction
Assignee: Individual
•
Filing: 1957-08-27
•
Granted: 1960-04-05
•
Expires: 1977-08-27
Abstract
No abstract record available.
Inventors
- 👤 John F Steel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:49
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/06; E05D15/0621; E05D15/066; E05D15/0665; E05D15/0669; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/46; E06B3/4609; E05D15/08; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/638; E05Y2600/00; E05Y2600/10; E05Y2600/30; E05Y2600/31; E05Y2800/00; E05Y2800/26; E05Y2800/266; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |