US2844261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage shelving construction
Assignee: YANKEE ENGINEERING Co Inc
•
Filing: 1956-09-25
•
Granted: 1958-07-22
•
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 10:09
CPC Classifications
A; A47; A47B; A47B55/00; A47B55/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US200222A
Cited
US425926A
Cited
US1250184A
Cited
US1911018A
Cited
US2010927A
Cited
US2107660A
Cited
US2294155A
Cited
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 |