Patent US3824556A successfully refreshed from Google Patents.
US696059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-conducting pipe.
Assignee: Individual
•
Filing: 1899-06-27
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Granted: 1902-03-25
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Expires: 1919-06-27
Abstract
No abstract record available.
Inventors
- 👤 Francis Line
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:53
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/18; F16L58/182; Y; Y10; Y10S; Y10S138/00; Y10S138/04
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) | 1905-03-24 | 1905-09-23 | 1906-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-03-24 | 1909-09-23 | 1910-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-03-24 | 1913-09-23 | 1914-03-25 | $7700.00 | Window Closed / Lapsed |