US3507950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of thermofusion molding
Assignee: Vistron Corp
•
Filing: 1967-04-24
•
Granted: 1970-04-21
•
Expires: 1987-04-24
Abstract
No abstract record available.
Inventors
- 👤 Louis H Barnett
- 👤 Henry P Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:18
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/34; B29C41/46; B29C41/02; B29C41/04; B29C41/06; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0822; B29C33/00; B29C33/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USRE25587E
Cited
US1328887A
Cited
US1703024A
Cited
US1784686A
Cited
US3009209A
Cited
US3044124A
Cited
US3164654A
Cited
US3233287A
Cited
US3115680A
Cited
US3280232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-20 | 1973-10-20 | 1974-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-20 | 1977-10-20 | 1978-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-20 | 1981-10-20 | 1982-04-21 | $7700.00 | Window Closed / Lapsed |