US3406052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making plastic-coated corrugated fiberboard
Assignee: Stapling Machines Co LLC
•
Filing: 1963-01-28
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Granted: 1968-10-15
•
Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Guilford B Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:03
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C65/00; B29C65/02; B29C65/10; B29C65/106; B29C65/74; B29C65/749; B29C66/13; B29C66/137; B29C66/40; B29C66/41; B29C66/43; B29C66/438; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C66/836; B29C67/00; B29C67/0044; B31; B31F; B31F1/00; B31F1/20; B31F1/24; B31F1/26; B31F1/28; B31F1/2822; B31F1/2827; D; D21; D21J; D21J1/00; B29C66/71; B29C66/72; B29C66/725; B29C66/7252; B29C66/72521; Y; Y10; Y10S; Y10S229/00; Y10S229/939; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1005; Y10T156/1052; Y10T156/108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
THE METHOD OF MAKING WATERPROOF CORRUGATED FIBERBOARD WHICH COMPRISES, HEATING THERMOPLASTIC MATERIAL AND EXTRUDING IT INTO TWO THIN FILMS EXTENDING GENERALLY VERTICALLY DOWNWARDLY AND SLIGHTLY SPACED APART HORIZONTALLY, FEEDING CORRUGATED FIBERBOARD GENERALLY VERTICALLY DOWNWARDLY BETWEEN SAID FILMS, PASSING SAID CORRUGATED FIBERBOARD WITH SAID FILMS, STILL IN HEAT-SOFTENED CONDITION, AT ITS OPPOSITE FACES, BETWEEN A PAIR OF HARD-SURFACED ROLLERS UNDER A PRESSURE SUFFICIENT TO COMPRESS THE COM-
Claim 2
Independent Claim
66 words
THE METHOD OF MAKING WATERPROOF CORRUGATED FIBERBOARD WHICH COMPRISES, HEATING THERMOPLASTIC MATERIAL AND EXTRUDING IT INTO TWO THIN FILMS EXTENDING GENERALLY VERTICALLY DOWNWARDLY AND SLIGHTLY SPACED APART HORIZONTALLY, FEEDING CORRUGATED FIBERBOARD GENERALLY VERTICALLY DOWNWARDLY BETWEEN SAID FILMS, PASSING SAID CORRUGATED FIBERBOARD WITH SAID FILMS, STILL IN HEAT-SOFTENED CONDITION, AT ITS OPPOSITE FACES, BETWEEN A PAIR OF HARD-SURFACED ROLLERS UNDER A PRESSURE SUFFICIENT TO COMPRESS THE COM-
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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) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |