US1481255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transporting conduit for viscous substances and process of making the same
Assignee: Individual
•
Filing: 1920-07-15
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Granted: 1924-01-22
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Expires: 1940-07-15
Abstract
No abstract record available.
Inventors
- 👤 Harry A Cumfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:32
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/18; F16L53/00; F16L53/30; F16L53/32; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49361; Y10T29/49826; Y10T29/49879
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) | 1927-01-21 | 1927-07-23 | 1928-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-01-21 | 1931-07-23 | 1932-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-01-21 | 1935-07-23 | 1936-01-22 | $7700.00 | Window Closed / Lapsed |