US1779481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete construction and method of waterproofing the same
Assignee: Individual
•
Filing: 1928-05-14
•
Granted: 1930-10-28
•
Expires: 1948-05-14
Abstract
No abstract record available.
Inventors
- 👤 George C Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:58
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/46; C04B41/47; C04B41/478; C04B41/60; C04B41/61; C04B41/62; C04B2111/00; C04B2111/00474; C04B2111/0075; C04B2111/20; C04B2111/27; Y; Y10; Y10S; Y10S264/00; Y10S264/32; 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) | 1933-10-27 | 1934-04-28 | 1934-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-10-27 | 1938-04-28 | 1938-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-10-27 | 1942-04-28 | 1942-10-28 | $7700.00 | Window Closed / Lapsed |