Patent US4018587A successfully refreshed from Google Patents.
Patent US3236015A successfully refreshed from Google Patents.
US3236015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System of fabrication of porous structural elements
Assignee: Individual
•
Filing: 1961-07-11
•
Granted: 1966-02-22
•
Expires: 1981-07-11
Abstract
No abstract record available.
Inventors
- 👤 Rubenstein David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:28
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; Y; Y10; Y10S; Y10S52/00; Y10S52/07; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31536
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A STRUCTURE COMPRISED OF A PLURALITY OF BONDEDTOGETHER POROUS STRUCTURAL UNITS HAVING REINFORCED PLASTIC POLYMERIC RESIN COMPOSITION OF SUBSTANTIALLY UNIFORM HIGH STRENGTH JOINERY MEANS WHEREIN SAID POROUS STRUCTURAL UNITS ARE PORTIONS OF SAID STRUCTURE AND EXIST ALIGNED AND IN CONTACT WITH EACH OTHER THROUGH SAID ELEMENTS OF SASID JOINERY MEANS BEING DISPOSED BETWEEN SAID POROUS STRUCTURAL UNITS, SAID JOINERY MEANS BEING BONDED TO SAID UNITS AND INTO THE PORES OF SAID POROUS STRUCTURAL UNITS, SAID STRUCTURE BEING COMPRISED OF AT LEAST TWO POROUS STRUCTURAL UNITS AND THE JOINED-TOGETHER-COMBINATION OF AT LEAST
Claim 2
Dependent Claim
91 words
A STRUCTURE COMPRISED OF A PLURALITY OF BONDEDTOGETHER POROUS STRUCTURAL UNITS HAVING REINFORCED PLASTIC POLYMERIC RESIN COMPOSITION OF SUBSTANTIALLY UNIFORM HIGH STRENGTH JOINERY MEANS WHEREIN SAID POROUS STRUCTURAL UNITS ARE PORTIONS OF SAID STRUCTURE AND EXIST ALIGNED AND IN CONTACT WITH EACH OTHER THROUGH SAID ELEMENTS OF SASID JOINERY MEANS BEING DISPOSED BETWEEN SAID POROUS STRUCTURAL UNITS, SAID JOINERY MEANS BEING BONDED TO SAID UNITS AND INTO THE PORES OF SAID POROUS STRUCTURAL UNITS, SAID STRUCTURE BEING COMPRISED OF AT LEAST TWO POROUS STRUCTURAL UNITS AND THE JOINED-TOGETHER-COMBINATION OF AT LEAST
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |