Patent US907724A successfully refreshed from Google Patents.
US907724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for rendering conduits impervious.
Assignee: MONOLITHIC DUCT Co
•
Filing: 1907-02-20
•
Granted: 1908-12-29
•
Expires: 1927-02-20
Abstract
No abstract record available.
Inventors
- 👤 James M Boyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:22
CPC Classifications
B; B05; B05C; B05C11/00; B05C11/10; B05C11/1039; B27; B27K; B27K3/00; B27K3/02; B27K3/08; B27K3/10; Y; Y10; Y10S; Y10S118/00; Y10S118/10
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) | 1911-12-29 | 1912-06-29 | 1912-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-12-29 | 1916-06-29 | 1916-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-12-29 | 1920-06-29 | 1920-12-29 | $7700.00 | Window Closed / Lapsed |