US3499069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making bricks
Assignee: Struthers Scient & Intern Corp
•
Filing: 1966-08-18
•
Granted: 1970-03-03
•
Expires: 1986-08-18
Abstract
No abstract record available.
Inventors
- 👤 Herald Denton Seigle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:50
CPC Classifications
B; B28; B28B; B28B17/00; B28B17/02; B28B13/00; B28B13/02; B28B13/0215; B28B13/023; B28B15/00; B28B15/007; B28B3/00; B28B3/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US663904A
Cited
US809053A
Cited
US1327721A
Cited
US1462596A
Cited
GB415061A
Cited
DE830169C
Cited
US2622302A
Cited
US2696353A
Cited
US2858594A
Cited
US2893101A
Cited
US2940154A
Cited
US2904444A
Cited
US3088713A
Cited
US3050809A
Cited
US3277551A
Cited
US3257220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |