Patent US1147818A successfully refreshed from Google Patents.
Patent US3084403A successfully refreshed from Google Patents.
US3084403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll-wall
Assignee: Individual
•
Filing: 1960-10-07
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Granted: 1963-04-09
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Expires: 1980-10-07
Abstract
No abstract record available.
Inventors
- 👤 Elmendorf Armin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:34
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24562; Y10T428/2457
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A FLEXIBLE WALLBOARD HAVING A PAPER FACE, THE BACK BEING GROOVED ALONG SPACED PARALLEL LINES, SAID BOARD BEING FRACTURED ALONG SAID GROOVES SO THAT IT IS FLEXIBLE, THE FRACTURES EXTENDING TO THE PAPER FACE, A PAPER BACKING
Claim 2
Dependent Claim
37 words
A FLEXIBLE WALLBOARD HAVING A PAPER FACE, THE BACK BEING GROOVED ALONG SPACED PARALLEL LINES, SAID BOARD BEING FRACTURED ALONG SAID GROOVES SO THAT IT IS FLEXIBLE, THE FRACTURES EXTENDING TO THE PAPER FACE, A PAPER BACKING
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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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |