US3274743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking wallboard
Assignee: Individual
•
Filing: 1963-07-10
•
Granted: 1966-09-27
•
Expires: 1983-07-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph Louis Blum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:43
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/14; E04F13/141
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PREFABRICATED WALLBOARD PANEL COMPRISING AN ELONGATED PLANAR MEMBER HAVING A BEVELED MARGINAL EDGE PORTION, AN ELONGATED RECESS ADJACENT SAID MARGINAL EDGE PORTION DEFINING A FACE AND A CHAMFERED PORTION, A DEPRESSION FORMED IN SAID WALLBOARD ADJACENT SAID MARGINAL EDGE PORTION IN THE FACE THEREOF REMOTE FROM THE RECESS, A PLURALITY OF PREFORMED FILLER MATERIAL RECEIVING AND BONDING APERTURES IN SAID DEPRESSION THROUGH SAID PLANAR MEMBER, SAID PLANAR MEMBER BEING ADAPTED TO HAVE SAID MARGINAL EDGE PORTION THEREOF DISPOSED IN OVERLAPPED ENGAGEMENT WITH A MARGINAL EDGE PORTION OF A SECOND PLANAR MEMBER ALSO HAVING AN ELONGATED RECESS FORMED THEREIN BUT OPENING IN THE OPPOSITE DIRECTION RELATIVE TO THE FIRST MENTIONED RECESS.
Claim 2
Dependent Claim
111 words
A PREFABRICATED WALLBOARD PANEL COMPRISING AN ELONGATED PLANAR MEMBER HAVING A BEVELED MARGINAL EDGE PORTION, AN ELONGATED RECESS ADJACENT SAID MARGINAL EDGE PORTION DEFINING A FACE AND A CHAMFERED PORTION, A DEPRESSION FORMED IN SAID WALLBOARD ADJACENT SAID MARGINAL EDGE PORTION IN THE FACE THEREOF REMOTE FROM THE RECESS, A PLURALITY OF PREFORMED FILLER MATERIAL RECEIVING AND BONDING APERTURES IN SAID DEPRESSION THROUGH SAID PLANAR MEMBER, SAID PLANAR MEMBER BEING ADAPTED TO HAVE SAID MARGINAL EDGE PORTION THEREOF DISPOSED IN OVERLAPPED ENGAGEMENT WITH A MARGINAL EDGE PORTION OF A SECOND PLANAR MEMBER ALSO HAVING AN ELONGATED RECESS FORMED THEREIN BUT OPENING IN THE OPPOSITE DIRECTION RELATIVE TO THE FIRST MENTIONED RECESS.
References Cited (Backward Citations)
US1534142A
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US1582721A
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US1942946A
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US2107240A
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US2068098A
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US2276071A
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US2305247A
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FR1123293A
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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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |