US3516804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coinage material
Assignee: Huntington Alloys Corp
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Filing: 1967-09-06
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Granted: 1970-06-23
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Expires: 1987-09-06
Abstract
No abstract record available.
Inventors
- 👤 Robert Howard Trapp
- 👤 Howard Wayne Hayden Jr
- 👤 Jere Hall Brophy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:06
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/04; C22C9/06; G; G07; G07F; G07F1/00; G07F1/06; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10T; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12236; Y10T428/12243; Y10T428/12493; Y10T428/12639; Y10T428/12646
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) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |