US3377657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for molding a reinforced hollow plastic article
Assignee: Fibercast Co
•
Filing: 1967-03-31
•
Granted: 1968-04-16
•
Expires: 1987-03-31
Abstract
No abstract record available.
Inventors
- 👤 Henry M Richardson
- 👤 Alfred C Alberghini
- 👤 Fred E Wiley
- 👤 Wesley S Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:42
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/44; B29C33/00; B29C33/02; B29C33/04; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/42; B29C70/44; B29C70/446; B29C43/00; B29C43/02; B29C43/10; B29C43/12; B29K; B29K2077/00; B29L; B29L2023/00; B29L2023/22; Y; Y10; Y10S; Y10S425/00; Y10S425/812
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |