US2689003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding door
Assignee: Individual
•
Filing: 1951-02-27
•
Granted: 1954-09-14
•
Expires: 1971-02-27
Abstract
No abstract record available.
Inventors
- 👤 Helbert Francis
- 👤 Peignen Henri Jules
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:13
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/48; E06B3/485; E05; E05D; E05D15/00; E05D15/06; E05D15/12; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191323584A
Cited
CH167420A
Cited
GB519179A
Cited
US2252139A
Cited
US2330670A
Cited
US2391845A
Cited
US2604162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |