Patent US2972833A successfully refreshed from Google Patents.
US2972833A
Expired / Lapsed
US
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Plastic block assembly
Assignee: LAPIN PRODUCTS Inc
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Filing: 1957-07-05
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Granted: 1961-02-28
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Expires: 1977-07-05
Abstract
No abstract record available.
Inventors
- 👤 Grutta Pascal La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:52
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/06; A63H33/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-28 | 1964-08-29 | 1965-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-28 | 1968-08-29 | 1969-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-28 | 1972-08-29 | 1973-02-28 | $7700.00 | Window Closed / Lapsed |