US3499246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windowgate assembly
Assignee: ANNETTE D LOUKAS
•
Filing: 1968-02-26
•
Granted: 1970-03-10
•
Expires: 1988-02-26
Abstract
No abstract record available.
Inventors
- 👤 Annette D Loukas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:34
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/28; E06B7/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1964332A
Cited
US2524230A
Cited
US2648273A
Cited
US2756466A
Cited
US2932279A
Cited
US3091221A
Cited
US3325237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |