US3335923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angled seat closure
Assignee: Poly Seal Corp
•
Filing: 1965-10-21
•
Granted: 1967-08-15
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Healy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:39
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0407
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB190214999A
Cited
GB737210A
Cited
US2950033A
Cited
GB846780A
Cited
US3117703A
Cited
US2965256A
Cited
US3189072A
Cited
US3197055A
Cited
US3259233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |