US3457136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing fiber reinforced bitumen-containing products and the reinforced products obtained thereby
Assignee: Akzona Inc
•
Filing: 1967-03-15
•
Granted: 1969-07-22
•
Expires: 1987-03-15
Abstract
No abstract record available.
Inventors
- 👤 Gottlieb Lebrecht Zaadnoordijk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:06
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C04; C04B; C04B20/00; C04B20/10; C04B20/1018; C09; C09D; C09D195/00; D; D06; D06N; D06N5/00; E; E01; E01C; E01C11/00; E01C11/16; E01C11/165; C08J2395/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31815; Y10T442/00; Y10T442/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2268759A
Cited
US2343600A
Cited
US2552947A
Cited
US2634208A
Cited
US2701217A
Cited
US2688005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |