US2895467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neck seal
Assignee: Individual
•
Filing: 1953-03-17
•
Granted: 1959-07-21
•
Expires: 1973-03-17
Abstract
No abstract record available.
Inventors
- 👤 Francis T Wallin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:55
CPC Classifications
A; A61; A61H; A61H31/00; A61H31/02; A61M; A61M16/00; A61M16/06; A61M16/0605; A61M16/0627
Claims Analysis
Total Claims: 0
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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) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |