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USD253438S
Expired / Lapsed
US
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Combined work case, pad holder and calculator
Assignee: Individual
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Filing: 1977-09-06
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Granted: 1979-11-20
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Expires: 1997-09-06
Abstract
No abstract record available.
Inventors
- 👤 Harold T. Markley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:16
CPC Classifications
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Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
14 words
The ornamental design for a combined work case, pad holder and calculator, as shown.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-19 | 1983-05-21 | 1983-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-19 | 1987-05-21 | 1987-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-19 | 1991-05-21 | 1991-11-20 | $7700.00 | Window Closed / Lapsed |