Patent US2826240A successfully refreshed from Google Patents.
US2826240A
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Reinforced corner for plastic sheets and method of making same
Assignee: Haskelite Manufacturing Corp
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Filing: 1955-07-19
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Granted: 1958-03-11
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Expires: 1975-07-19
Abstract
No abstract record available.
Inventors
- 👤 George D Meier
- 👤 George E Kloote
- 👤 Joseph A Potchen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:20
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/38; E04C2/388; B; B29; B29C; B29C44/00; B29C44/34; B29C44/56; B32; B32B; B32B27/00; E04C2/02; E04C2/10; E04C2/20; E04C2/205; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1082; Y10T428/00; Y10T428/23; Y10T428/233; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249985; Y10T428/249987; Y10T428/249991; Y10T428/249992
Claims Analysis
Total Claims: 0
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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) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |