US3264034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load bearing structure
Assignee: Individual
•
Filing: 1964-03-25
•
Granted: 1966-08-02
•
Expires: 1984-03-25
Abstract
No abstract record available.
Inventors
- 👤 David E Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:52
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/18; A47C7/20; A47C3/00; A47C3/12; B; B29; B29C; B29C44/00; B29C44/02; B29C44/04; B29C44/12; B29C44/1209; B29C44/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A LOAD BEARING UNIT, COMPRISING A LAYER OF FOAM PLASTIC HAVING A LOAD BEARING SURFACE, AND A SHEET OF REINFORCING MATERIAL EMBEDDED WITHIN THE LAYER AND BONDED TO THE FOAM PLASTIC, THE PORTION OF SAID SHEET DISPOSED IN ALIGNMENT WITH SAID LOAD BEARING SURFACE BEING CUT AND THE PORTIONS OF SAID SHEET BORDERING SAID
Claim 2
Dependent Claim
54 words
A LOAD BEARING UNIT, COMPRISING A LAYER OF FOAM PLASTIC HAVING A LOAD BEARING SURFACE, AND A SHEET OF REINFORCING MATERIAL EMBEDDED WITHIN THE LAYER AND BONDED TO THE FOAM PLASTIC, THE PORTION OF SAID SHEET DISPOSED IN ALIGNMENT WITH SAID LOAD BEARING SURFACE BEING CUT AND THE PORTIONS OF SAID SHEET BORDERING SAID
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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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |