US3230677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing structure and related structures
Assignee: DS Brown Co Inc
•
Filing: 1963-03-26
•
Granted: 1966-01-25
•
Expires: 1983-03-26
Abstract
No abstract record available.
Inventors
- 👤 Howard R Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:40
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/58; E06B3/62; E06B3/6205; E06B2003/6217; E06B2003/6226; E06B2003/625; E06B2003/6252; E06B2003/627; E06B2003/6276; E06B2003/6282
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2017556A
Cited
US2121827A
Cited
US2203522A
Cited
US2254028A
Cited
US2563378A
Cited
US2606635A
Cited
DE957068C
Cited
US2878535A
Cited
US3029481A
Cited
US3026582A
Cited
US3039232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |