Patent EP0239400A2 successfully refreshed from Google Patents.
US3523766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of cellular metals
Assignee: Individual
•
Filing: 1969-01-16
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Granted: 1970-08-11
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Expires: 1989-01-16
Abstract
No abstract record available.
Inventors
- 👤 Harold Markus
- 👤 Samuel Lipson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:44
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/24; B22F3/26; B22F3/10; B22F3/11; B22F3/1121; B22F3/1134; C; C22; C22C; C22C1/00; C22C1/08; C22C1/081; E; E02; E02F; E02F5/00; E02F5/30; B22F2998/00; B29; B29C; B29C43/00; B29C43/32; B29C43/36; B29C2043/3665; B29C2043/3668; B29C43/006; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/4998; Y10T29/49988; Y10T29/49989; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12153; Y10T428/12479
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB292468A
Cited
GB191125702A
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US1344324A
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US1928021A
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US2085052A
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US2553016A
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US2661238A
Cited
GB811814A
Cited
US2895819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |