US3005491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chamberless mold and process of making same
Assignee: Diamond National Corp
•
Filing: 1958-10-08
•
Granted: 1961-10-24
•
Expires: 1978-10-08
Abstract
No abstract record available.
Inventors
- 👤 Wells Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:02
CPC Classifications
D; D21; D21J; D21J7/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49861
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734430A
Cited
US1717996A
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US1963134A
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US2326758A
Cited
US2584110A
Cited
US2585049A
Cited
US2718826A
Cited
US2836530A
Cited
US2802766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-23 | 1965-04-24 | 1965-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-23 | 1969-04-24 | 1969-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-23 | 1973-04-24 | 1973-10-24 | $7700.00 | Window Closed / Lapsed |