US2687558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner-bead for dry-wall construction
Assignee: Individual
•
Filing: 1949-03-15
•
Granted: 1954-08-31
•
Expires: 1969-03-15
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Dunlap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:06
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/02; E04F13/04; E04F13/06; E04F2013/063; Y; Y10; Y10S; Y10S52/00; Y10S52/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US178613A
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US1449745A
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FR775390A
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US2240288A
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US2196086A
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US2384219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |