US3364091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminating method and apparatus
Assignee: FMC Corp
•
Filing: 1962-12-26
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Granted: 1968-01-16
•
Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 John D Conti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:44
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/18; B; B29; B29C; B29C43/00; B29C43/22; B29C43/30; B29C43/305; B32; B32B; B32B27/00; D; D21; D21J; D21J1/00; D21J1/16; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1741
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A METHOD OF LAMINATING A PLURALITY OF SHEETS IN WHICH AT LEAST ONE OF EACH PAIR OF OPPOSING SIDES THEREOF IS FORMED OF THERMOPLASTIC MATERIAL INCLUDING THE STEPS OF APPLYING HEAT DIRECTLY TO AT LEAST ONE OF THE OPPOSING SIDES OF EACH PAIR OF OPPOSING SIDES TO ELEVATE THE TEMPERATURE THEREOF TO WITHIN THE SOFTENING RANGE OF THE THERMOPLASTIC MATERAIL FORMING SUCH ONE SIDE, ENGAGING SAID HEATED SIDES WITH OPPOSING SIDES UNDER PRESSURE, REMOVING PRESSURE FROM THE SHEETS AND SUBJECTING THE SHEETS TO AN ELEVATED TEMPERATURE NOT GREATER THAN THE TEMPERATURE TO WHICH SAID ONE SIDE WAS FIRST HEATED BUT WITHIN THE SOFTENING RANGE OF SAID THERMOPLASTIC MATERIAL, THEREAFTER COOLING THE BONDED SHEETS.
Claim 2
Independent Claim
113 words
A METHOD OF LAMINATING A PLURALITY OF SHEETS IN WHICH AT LEAST ONE OF EACH PAIR OF OPPOSING SIDES THEREOF IS FORMED OF THERMOPLASTIC MATERIAL INCLUDING THE STEPS OF APPLYING HEAT DIRECTLY TO AT LEAST ONE OF THE OPPOSING SIDES OF EACH PAIR OF OPPOSING SIDES TO ELEVATE THE TEMPERATURE THEREOF TO WITHIN THE SOFTENING RANGE OF THE THERMOPLASTIC MATERAIL FORMING SUCH ONE SIDE, ENGAGING SAID HEATED SIDES WITH OPPOSING SIDES UNDER PRESSURE, REMOVING PRESSURE FROM THE SHEETS AND SUBJECTING THE SHEETS TO AN ELEVATED TEMPERATURE NOT GREATER THAN THE TEMPERATURE TO WHICH SAID ONE SIDE WAS FIRST HEATED BUT WITHIN THE SOFTENING RANGE OF SAID THERMOPLASTIC MATERIAL, THEREAFTER COOLING THE BONDED SHEETS.
References Cited (Backward Citations)
US2451597A
Cited
US2474896A
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US2757711A
Cited
GB854678A
Cited
US2999782A
Cited
US3037868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |