US2879552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demountable supporting structure
Assignee: Individual
•
Filing: 1954-07-26
•
Granted: 1959-03-31
•
Expires: 1974-07-26
Abstract
No abstract record available.
Inventors
- 👤 Frank W Torrance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:00
CPC Classifications
E; E04; E04H; E04H3/00; E04H3/10; E04H3/12; E04G; E04G1/00; E04G1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US832625A
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US963030A
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US2311988A
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US2316952A
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US2472423A
Cited
US2635717A
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US2736613A
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US2765200A
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US2778693A
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US2771324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |