US3418409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for thickening the end of plastic pipe
Assignee: J-M MANUFACTURING Co COMPANY Inc A CORP OF
•
Filing: 1965-10-15
•
Granted: 1968-12-24
•
Expires: 1985-10-15
Abstract
No abstract record available.
Inventors
- 👤 Hesse Jack Elwyn
- 👤 Ostapovich John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:07
CPC Classifications
B; B29; B29C; B29C61/00; B29C61/02; B29C61/025; B29C57/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2361933A
Cited
FR897778A
Cited
US2485885A
Cited
GB639997A
Cited
US2876496A
Cited
US2936491A
Cited
US3013310A
Cited
US3059810A
Cited
FR1289844A
Cited
GB986076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |