US2480562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water excluding vent
Assignee: Individual
•
Filing: 1946-11-06
•
Granted: 1949-08-30
•
Expires: 1966-11-06
Abstract
No abstract record available.
Inventors
- 👤 Ewing John Minor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:22
CPC Classifications
B; B63; B63J; B63J2/00; B63J2/02; B63J2/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US253188A
Cited
US887722A
Cited
GB201745A
Cited
US1657625A
Cited
US1785682A
Cited
GB336432A
Cited
US2120060A
Cited
US2265881A
Cited
US2216420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |