US2692019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expanded sheet and method for making same
Assignee: Individual
•
Filing: 1945-03-14
•
Granted: 1954-10-19
•
Expires: 1965-03-14
Abstract
No abstract record available.
Inventors
- 👤 Albert M Zalkind
- 👤 Zalkind Mollie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:52
CPC Classifications
B; B21; B21D; B21D31/00; B21D31/04; Y; Y10; Y10T; Y10T29/00; Y10T29/18; Y10T29/185; Y10T428/00; Y10T428/12; Y10T428/12201; Y10T428/12361; Y10T428/12368; Y10T428/1241
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US297382A
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US821843A
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US891822A
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US1166888A
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US964624A
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US1733778A
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US1759481A
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US1777076A
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US2011563A
Cited
US1991206A
Cited
US2018085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-18 | 1958-04-19 | 1958-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-18 | 1962-04-19 | 1962-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-18 | 1966-04-19 | 1966-10-19 | $7700.00 | Window Closed / Lapsed |