US1933749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular structure and method of making same
Assignee: Metropolitan Engineering Co
•
Filing: 1929-05-08
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Granted: 1933-11-07
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Expires: 1949-05-08
Abstract
No abstract record available.
Inventors
- 👤 Marray Joseph Bradley
- 👤 Jr Thomas E Murray
- 👤 John F Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:35
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/006; F16L15/009; F16L13/00; F16L13/02; F16L13/04
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 |