US1212331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of artificial-stone structures.
Assignee: Individual
•
Filing: 1915-10-20
•
Granted: 1917-01-16
•
Expires: 1935-10-20
Abstract
No abstract record available.
Inventors
- 👤 Paul E Denivelle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:37
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; B; B44; B44F; B44F9/00; B44F9/04; Y; Y10; Y10S; Y10S52/00; Y10S52/07
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) | 1920-01-16 | 1920-07-17 | 1921-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-01-16 | 1924-07-17 | 1925-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-01-16 | 1928-07-17 | 1929-01-16 | $7700.00 | Window Closed / Lapsed |