Patent US2534940A successfully refreshed from Google Patents.
US2534940A
Expired / Lapsed
US
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Wall guide
Assignee: Individual
•
Filing: 1948-04-22
•
Granted: 1950-12-19
•
Expires: 1968-04-22
Abstract
No abstract record available.
Inventors
- 👤 Elvin D Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:11
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/14; E04G21/16; E04G21/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US715946A
Cited
US695145A
Cited
US915982A
Cited
US991446A
Cited
US1210339A
Cited
US1742103A
Cited
DE522599C
Cited
US2133605A
Cited
US2438613A
Cited
US2466919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |