Patent US1045459A successfully refreshed from Google Patents.
US1045459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoke-stack.
Assignee: CHICAGO FIREPROOF COVERING Co
•
Filing: 1908-04-20
•
Granted: 1912-11-26
•
Expires: 1928-04-20
Abstract
No abstract record available.
Inventors
- 👤 Henry C Todd
- 👤 Charles Mayr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:38
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/14; Y; Y10; Y10S; Y10S138/00; Y10S138/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1915-11-26 | 1916-05-27 | 1916-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-11-26 | 1920-05-27 | 1920-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-11-26 | 1924-05-27 | 1924-11-26 | $7700.00 | Window Closed / Lapsed |