US3214794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming structural units or modules of expanded plastic
Assignee: Individual
•
Filing: 1962-03-13
•
Granted: 1965-11-02
•
Expires: 1982-03-13
Abstract
No abstract record available.
Inventors
- 👤 Roger H Otis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:15
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/38; B29C44/44; B29C44/445; B29C44/3415; B29C44/3426
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
AN APPARATUS FOR FABRICATING STRUCTURAL MODULES INCLUDING: A MOLD BOX PROVIDED WITH A CAVITY AND HAVING AT LEAST ONE WALL MOVABLE TO OPEN SAID CAVITY TO PERMIT THE INTRODUCTION OF AN EXPANDABLE SUBSTANCE INTO THE CAVITY ANDF THE REMOVAL OF THE FABRICATED MODULE THEREFROM; SAID MOLD BOX HAVING A PLURALITY OF SPACED APERTURES OPENING INTO SAID CAVITY; AND A PLURALITY OF ELONGATE SPACED PROBES MOVABLE INTO SAID CAVITY THROUGH SAID APERTURES, SAID PROBES BEING HOLLOW AND HAVING A PLURALITY OF CIRCUMFERENTIALLY AND LONGITUDINALLY SPACED PERFORATIONS, SAID PROBES HAVING MEANS FOR CONNECTION TO A SOURCE OF STEAM UNDER PRESSURE WHEREBY STEAM UNDER PRESSURE MAY BE INTRODUCED INTO SAID PROBES AND THROUGH THE PERFORATIONS OF SAID PROBES INTO THE CAVITY AT SPACED LOCATIONS IN THE CAVITY; AND MEANS CARRIED BY SAID PROBES AND ENGAGEABLE WITH SAID MOLD BOX WHEN SAID PROBES ARE DISPOSED IN SAID CAVITY FOR SEALING BETWEEN SAID PROBES AND SAID MOLD BOX TO CLOSE SAID APERTURES TO PREVENT FLOW OF FLOW FROM SAID CAVITY.
Claim 2
Independent Claim
165 words
AN APPARATUS FOR FABRICATING STRUCTURAL MODULES INCLUDING: A MOLD BOX PROVIDED WITH A CAVITY AND HAVING AT LEAST ONE WALL MOVABLE TO OPEN SAID CAVITY TO PERMIT THE INTRODUCTION OF AN EXPANDABLE SUBSTANCE INTO THE CAVITY ANDF THE REMOVAL OF THE FABRICATED MODULE THEREFROM; SAID MOLD BOX HAVING A PLURALITY OF SPACED APERTURES OPENING INTO SAID CAVITY; AND A PLURALITY OF ELONGATE SPACED PROBES MOVABLE INTO SAID CAVITY THROUGH SAID APERTURES, SAID PROBES BEING HOLLOW AND HAVING A PLURALITY OF CIRCUMFERENTIALLY AND LONGITUDINALLY SPACED PERFORATIONS, SAID PROBES HAVING MEANS FOR CONNECTION TO A SOURCE OF STEAM UNDER PRESSURE WHEREBY STEAM UNDER PRESSURE MAY BE INTRODUCED INTO SAID PROBES AND THROUGH THE PERFORATIONS OF SAID PROBES INTO THE CAVITY AT SPACED LOCATIONS IN THE CAVITY; AND MEANS CARRIED BY SAID PROBES AND ENGAGEABLE WITH SAID MOLD BOX WHEN SAID PROBES ARE DISPOSED IN SAID CAVITY FOR SEALING BETWEEN SAID PROBES AND SAID MOLD BOX TO CLOSE SAID APERTURES TO PREVENT FLOW OF FLOW FROM SAID CAVITY.
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |