US1934349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular fire escape construction
Assignee: POTTER MANUFACTURING Corp
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Filing: 1931-07-15
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Granted: 1933-11-07
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Expires: 1951-07-15
Abstract
No abstract record available.
Inventors
- 👤 Friend Richard Nason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:08
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; A; A62; A62B; A62B1/00; A62B1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-11-06 | 1937-05-08 | 1937-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-11-06 | 1941-05-08 | 1941-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-11-06 | 1945-05-08 | 1945-11-07 | $7700.00 | Window Closed / Lapsed |