Patent US2765102A successfully refreshed from Google Patents.
US2765102A
Expired / Lapsed
US
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Block-handling device
Assignee: Armstrong World Industries Inc
•
Filing: 1950-09-22
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Granted: 1956-10-02
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Expires: 1970-09-22
Abstract
No abstract record available.
Inventors
- 👤 Henry M Yohn
- 👤 Louis H Lockwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:08
CPC Classifications
B; B65; B65G; B65G59/00; B65G59/02; B65G59/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1477471A
Cited
US1626933A
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US1673864A
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US2065674A
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US2076186A
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US2219630A
Cited
US2338048A
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US2508861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |