Patent US3300933A successfully refreshed from Google Patents.
US3300933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall construction
Assignee: Individual
•
Filing: 1964-03-11
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Granted: 1967-01-31
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Expires: 1984-03-11
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Donahue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:13
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |