Patent US2844261A successfully refreshed from Google Patents.
US2844261A
Expired / Lapsed
US
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Storage shelving construction
Assignee: YANKEE ENGINEERING Co Inc
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Filing: 1956-09-25
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Granted: 1958-07-22
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Expires: 1976-09-25
Abstract
No abstract record available.
Inventors
- 👤 William E Chalmers
- 👤 George J Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:19
CPC Classifications
A; A47; A47B; A47B55/00; A47B55/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US200222A
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US425926A
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US1250184A
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US1911018A
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US2010927A
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US2107660A
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US2294155A
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GB609885A
Cited
US2639042A
Cited
US2614702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |