US3298887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing laminate sheet
Assignee: Hoover Universal Inc
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Filing: 1964-07-23
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Granted: 1967-01-17
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Expires: 1984-07-23
Abstract
No abstract record available.
Inventors
- 👤 Carroll H Van Hartesveldt
- 👤 Buddy D Wahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:08
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/088; B29C43/00; B29C43/22; B29C43/228; B29C70/28; B29C70/40; B29C70/50; B32; B32B; B32B27/00; B32B37/00; B32B37/10; B29C43/32; B29C43/44; B29C43/48; B29C2043/483; B29K; B29K2061/00; B29K2063/00; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0809; B29K2705/00; B29K2711/00; B29K2711/12; B29K2711/126; B29L; B29L2031/00; B29L2031/34; B29L2031/3425; B29L2031/722; B32B38/00; B32B2038/0052; B32B2038/0076; B32B2317/00; B32B2317/12; B32B2317/125; B32B37/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
THE METHOD OF MOLDING A PLASTIC LAMINATE COMPRISING POSITIONING A PLURALITY OF LAYERS OF THERMOSETTING PLASTIC IN OVERLAYING RELATIONSHIP, HEATING THE PLASTIC TO A VISCOUS STATE, APPLYING A PROGRESSING LOCAL PRESSURE TO THE SURFACE OF THE PLASTIC, AND WHILE CONTINUOUSLY MAINTAINING PRESSURE ON THE PLASTIC HEATING THE PLASTIC TO A TEMPERATURE FOR A TIME SUFFICIENT TO CURE THE PLASTIC AND IMMEDIATELY THEREAFTER COOLING THE PLASTIC.
Claim 2
Independent Claim
65 words
THE METHOD OF MOLDING A PLASTIC LAMINATE COMPRISING POSITIONING A PLURALITY OF LAYERS OF THERMOSETTING PLASTIC IN OVERLAYING RELATIONSHIP, HEATING THE PLASTIC TO A VISCOUS STATE, APPLYING A PROGRESSING LOCAL PRESSURE TO THE SURFACE OF THE PLASTIC, AND WHILE CONTINUOUSLY MAINTAINING PRESSURE ON THE PLASTIC HEATING THE PLASTIC TO A TEMPERATURE FOR A TIME SUFFICIENT TO CURE THE PLASTIC AND IMMEDIATELY THEREAFTER COOLING THE PLASTIC.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |