US3132396A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clip
Assignee: PENN CHEM CORP
•
Filing: 1961-11-01
•
Granted: 1964-05-12
•
Expires: 1981-11-01
Abstract
No abstract record available.
Inventors
- 👤 Herbert I Berman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:20
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/02; F16L33/03; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/149; Y10T24/15; Y10T24/44; Y10T24/44641; Y10T24/44744; Y10T24/44752
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US237976A
Cited
US282466A
Cited
US596642A
Cited
US1245892A
Cited
US1281469A
Cited
US1451206A
Cited
US2524562A
Cited
US2628396A
Cited
US2947055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |