US3113899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric sealing of thermoplastic coated fibreboard
Assignee: Primerica Inc
•
Filing: 1960-12-28
•
Granted: 1963-12-10
•
Expires: 1980-12-28
Abstract
No abstract record available.
Inventors
- 👤 Hoag Lehman Edward
- 👤 Wendricks Roland Norbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:53
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/04; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/23; B29C66/232; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/72; B29C66/721; B29C66/7214; B29C66/72143; B29C66/723; B29C66/729; B29C66/7292; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/74; B29C66/748; B29C66/7486; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81433; B29C66/81435; B29C66/71; B29C66/83; B29C66/832; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2313/00; B29K2711/00; B29K2711/12; B29K2711/123; B29L; B29L2009/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A METHOD OF BONDING TOGETHER RELATIVELY THIN FIBREBOARDS AT LEAST ONE OF WHICH HAS A THERMOPLASTIC COATING THEREON, COMPRISING THE STEPS OF: OVERLAPPING THE MARGINAL EDGE PORTIONS OF SAID FIBREBOARDS WITH SAID THERMOPLASTIC DISPOSED THEREBETWEEN; POSITIONING SAID OVERLAPPED EDGE PORTIONS BETWEEN A PAIR OF SPACED-APART ELONGATE ELECTRODES, EACH ELECTRODE COMPRISING A PLURALITY OF LONGITUDINALLY EXTENDING CRENELS WITH THE CRENELS OF ONE ELECTRODE OPPOSED TO THE CRENELS OF THE OTHER ELECTRODE; EXERTING AT LEAST 500 P.S.I. UPON AND URGING SAID ELECTRODES TOGETHER AND COMPRESSING SAID EDGE PORTIONS BETWEEN THE REDUCED CONTACT AREA OF SAID CRENELS WHEREBY SAID URGING FORCE IS AT LEAST TWICE SAID PRESSURE EXERTED UPON SAID ELECTRODES
Claim 2
Independent Claim
108 words
A METHOD OF BONDING TOGETHER RELATIVELY THIN FIBREBOARDS AT LEAST ONE OF WHICH HAS A THERMOPLASTIC COATING THEREON, COMPRISING THE STEPS OF: OVERLAPPING THE MARGINAL EDGE PORTIONS OF SAID FIBREBOARDS WITH SAID THERMOPLASTIC DISPOSED THEREBETWEEN; POSITIONING SAID OVERLAPPED EDGE PORTIONS BETWEEN A PAIR OF SPACED-APART ELONGATE ELECTRODES, EACH ELECTRODE COMPRISING A PLURALITY OF LONGITUDINALLY EXTENDING CRENELS WITH THE CRENELS OF ONE ELECTRODE OPPOSED TO THE CRENELS OF THE OTHER ELECTRODE; EXERTING AT LEAST 500 P.S.I. UPON AND URGING SAID ELECTRODES TOGETHER AND COMPRESSING SAID EDGE PORTIONS BETWEEN THE REDUCED CONTACT AREA OF SAID CRENELS WHEREBY SAID URGING FORCE IS AT LEAST TWICE SAID PRESSURE EXERTED UPON SAID ELECTRODES
References Cited (Backward Citations)
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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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |