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US2936148A
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US
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Assignee: Individual
•
Filing: 1958-03-05
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Granted: 1960-05-10
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Expires: 1978-03-05
Abstract
No abstract record available.
Inventors
- 👤 Sigmund J Gralewicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:17
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/12; F16B5/123; A; A47; A47G; A47G25/00; A47G25/02; A47G25/06; A47G25/0607
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE532134C
Cited
US1848937A
Cited
US799538A
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US910420A
Cited
US2162815A
Cited
US2304967A
Cited
US2659928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |