US2727650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic seal for leaks in oil tanks and the like
Assignee: Individual
•
Filing: 1954-12-15
•
Granted: 1955-12-20
•
Expires: 1974-12-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Moynihan
- 👤 Gau Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:20
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/16; F16L55/168; F16L55/1683; Y; Y10; Y10S; Y10S206/00; Y10S206/818; Y10S428/00; Y10S428/90; Y10S454/00; Y10S454/904; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49732; Y10T292/00; Y10T292/11; Y10T292/34
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) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |