Patent US2818923A successfully refreshed from Google Patents.
US2818923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for manufacturing grids
Assignee: Individual
•
Filing: 1954-05-11
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Granted: 1958-01-07
•
Expires: 1974-05-11
Abstract
No abstract record available.
Inventors
- 👤 Pascuale Diego Felipe Juan Di
- 👤 Enestrom Raul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:16
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/13; B21D28/00; B21D28/02; B21D28/04; B21D43/26; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/4501; Y10T83/4503; Y10T83/4508; Y10T83/4645; Y10T83/869; Y10T83/8821; Y10T83/8828; Y10T83/8831
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US456579A
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US524203A
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US793051A
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US951169A
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US1145167A
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US1856970A
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US2051031A
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US2580756A
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US2556010A
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US2684717A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |