US3247752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing or cushion fastener
Assignee: L J BARWOOD Manufacturing CO Inc
•
Filing: 1963-12-10
•
Granted: 1966-04-26
•
Expires: 1983-12-10
Abstract
No abstract record available.
Inventors
- 👤 Richard J Greenleaf
- 👤 Edward J Conklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:40
CPC Classifications
F; F16; F16B; F16B43/00; F16B43/001; F16B33/00; F16B33/004; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/944; Y10S411/00; Y10S411/915
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |