US3214889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow wall constructions and parts therefor or the like
Assignee: Reynolds Metals Co
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Filing: 1961-08-04
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Granted: 1965-11-02
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Expires: 1981-08-04
Abstract
No abstract record available.
Inventors
- 👤 John L Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:02
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A HOLLOW WALL CONSTRUCTION HAVING OPPOSED OUTER SURFACE MEANS AND COMPRISING TWO OPPOSED ROWS OF INTERCONNECTED WALL SECTIONS EACH HAVING AN OUTER WALL FORMING PART OF SAID OUTER SURFACE MEANS AND PROVIDED WITH OPPOSED ENDS, SAID OPPOSED ENDS OF EACH WALL SECTION HAVING COMPLEMENTARY INTERLOCKING MEANS WHEREBY ADJACENT WALL SECTIONS OF EACH ROW THEREOF ARE INTERCONNECTED TOGETHER BY ADJACENT INTERLOCKING MEANS, EACH WALL SECTION HAVING A LEG PROVIDED WITH A FREE END INTERLOCKED BETWEEN ADJACENT INTERLOCKING MEANS OF A PAIR OF WALL SECTIONS DISPOSED IN THE ROW OPPSOTE THERETO.
Claim 2
Dependent Claim
89 words
A HOLLOW WALL CONSTRUCTION HAVING OPPOSED OUTER SURFACE MEANS AND COMPRISING TWO OPPOSED ROWS OF INTERCONNECTED WALL SECTIONS EACH HAVING AN OUTER WALL FORMING PART OF SAID OUTER SURFACE MEANS AND PROVIDED WITH OPPOSED ENDS, SAID OPPOSED ENDS OF EACH WALL SECTION HAVING COMPLEMENTARY INTERLOCKING MEANS WHEREBY ADJACENT WALL SECTIONS OF EACH ROW THEREOF ARE INTERCONNECTED TOGETHER BY ADJACENT INTERLOCKING MEANS, EACH WALL SECTION HAVING A LEG PROVIDED WITH A FREE END INTERLOCKED BETWEEN ADJACENT INTERLOCKING MEANS OF A PAIR OF WALL SECTIONS DISPOSED IN THE ROW OPPSOTE THERETO.
References Cited (Backward Citations)
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 |