Patent US3530622A successfully refreshed from Google Patents.
US3530622A
Expired / Lapsed
US
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Building apparatus and method
Assignee: Individual
•
Filing: 1968-05-09
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Granted: 1970-09-29
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Expires: 1988-05-09
Abstract
No abstract record available.
Inventors
- 👤 Edwin Jacques Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:21
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/32; E04B1/35; E04B1/3533; E04C; E04C3/00; E04C3/38; E04B2001/3217; E04B2001/3235; E04B2001/3241; E04B2001/3252; E04B2001/3583; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49828; Y10T29/49861
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2793720A
Cited
US2948047A
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US3057119A
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US3176961A
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US3399865A
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US3394452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |