Patent US2937842A successfully refreshed from Google Patents.
US2937842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring loaded ceiling support
Assignee: Individual
•
Filing: 1956-04-25
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Granted: 1960-05-24
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Expires: 1976-04-25
Abstract
No abstract record available.
Inventors
- 👤 Kenneth N Meek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:05
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/18; E04F21/1805; E04F21/1833
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1303416A
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US784985A
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US1229976A
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US1653824A
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US1820950A
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US2164609A
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US2273813A
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US2285901A
Cited
US2332240A
Cited
US2496794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |