US3472534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal construction
Assignee: HERSHEY METAL PRODUCTS Inc
•
Filing: 1966-03-11
•
Granted: 1969-10-14
•
Expires: 1986-03-11
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:40
CPC Classifications
F; F16; F16L; F16L5/00; F16L5/02; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/947; Y10S411/955; Y10S411/956; Y10S411/957; Y10S411/959
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1016746A
Cited
US1220818A
Cited
US2172311A
Cited
US2342425A
Cited
US2759743A
Cited
GB662298A
Cited
US3104120A
Cited
US3040796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |