US3526996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener for securing a window track to a windowsill
Assignee: H&A Supply Co Ltd
•
Filing: 1968-02-19
•
Granted: 1970-09-08
•
Expires: 1988-02-19
Abstract
No abstract record available.
Inventors
- 👤 William P Fraleigh
- 👤 Alcide Melanson
- 👤 Lorne H Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:51
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/46; E06B3/4681; E06B3/04; E06B3/263; E06B3/26347
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3055468A
Cited
US3077011A
Cited
US3203053A
Cited
US3191727A
Cited
US3156332A
Cited
US3295259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |