US3488810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve-gated mold construction
Assignee: Individual
•
Filing: 1967-03-17
•
Granted: 1970-01-13
•
Expires: 1987-03-17
Abstract
No abstract record available.
Inventors
- 👤 Jobst U Gellert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:36
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/26; B29C45/27; B29C45/28; B29C45/2806; B29C45/281; B29C2045/2834; Y; Y10; Y10S; Y10S425/00; Y10S425/229
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2994921A
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US2578719A
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US2558027A
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US2587070A
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US2770011A
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US2883704A
Cited
US2828507A
Cited
US3023458A
Cited
US2865050A
Cited
US3093865A
Cited
FR1330440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |