Patent US2931373A successfully refreshed from Google Patents.
US2931373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shelter
Assignee: Individual
•
Filing: 1958-05-19
•
Granted: 1960-04-05
•
Expires: 1978-05-19
Abstract
No abstract record available.
Inventors
- 👤 Dean W Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:50
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/32; E04H15/34; E04H15/42; E04H15/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US326849A
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US579373A
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US754613A
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US778620A
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US1412302A
Cited
US1498312A
Cited
GB246596A
Cited
US2134879A
Cited
US2569627A
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US2608198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |