US1985092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing concrete structures
Assignee: BARBER ASPHALT Co
•
Filing: 1929-03-05
•
Granted: 1934-12-18
•
Expires: 1949-03-05
Abstract
No abstract record available.
Inventors
- 👤 Harold P Hayden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:41
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/45; C04B41/4505; C04B41/4511; B; B28; B28B; B28B19/00; B28B7/00; B28B7/38; B28B7/384; C04B40/00; C04B40/04; Y; Y10; Y10S; Y10S264/00; Y10S264/43
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) | 1937-12-17 | 1938-06-18 | 1938-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-12-17 | 1942-06-18 | 1942-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-12-17 | 1946-06-18 | 1946-12-18 | $7700.00 | Window Closed / Lapsed |