Patent US2568490A successfully refreshed from Google Patents.
US2568490A
Expired / Lapsed
US
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Means for mounting wall and ceiling paneling
Assignee: Individual
•
Filing: 1949-11-14
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Granted: 1951-09-18
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Expires: 1969-11-14
Abstract
No abstract record available.
Inventors
- 👤 Edward W Dunham
- 👤 Wallace A Wiegert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:51
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0803; E04F13/081; E04F13/0821; E04F13/0823
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US734275A
Cited
US2469252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |