US1083002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet-metal culvert.
Assignee: American Rolling Mill Co
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Filing: 1913-08-14
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Granted: 1913-12-30
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Expires: 1933-08-14
Abstract
No abstract record available.
Inventors
- 👤 George Herbert Charls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:26
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/04; F16L23/08; F16L23/10
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) | 1916-12-29 | 1917-06-30 | 1917-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-12-29 | 1921-06-30 | 1921-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-12-29 | 1925-06-30 | 1925-12-30 | $7700.00 | Window Closed / Lapsed |