Patent US3350824A successfully refreshed from Google Patents.
US3350824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building construction
Assignee: Individual
•
Filing: 1964-06-15
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Granted: 1967-11-07
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Wiebusch Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:09
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1477867A
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US1575041A
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US1564264A
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US1714949A
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US2009056A
Cited
US2314449A
Cited
US2484062A
Cited
DE905060C
Cited
US2452463A
Cited
FR943068A
Cited
US2473018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |