US3232638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prestressed tubes and rods
Assignee: AMF Inc
•
Filing: 1962-11-26
•
Granted: 1966-02-01
•
Expires: 1982-11-26
Abstract
No abstract record available.
Inventors
- 👤 Hollander Milton Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:16
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/02; F16L9/04; E; E21; E21B; E21B17/00; E21B17/16; Y; Y10; Y10S; Y10S138/00; Y10S138/05
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US173963A
Cited
US998076A
Cited
US997435A
Cited
US1007152A
Cited
US1134930A
Cited
US1271260A
Cited
US1751914A
Cited
US1792941A
Cited
US1953172A
Cited
US2453079A
Cited
US2648895A
Cited
US2850264A
Cited
US2814462A
Cited
US2927806A
Cited
US2808231A
Cited
US2959193A
Cited
US3101272A
Cited
US3047313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |