US2917834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing and presenting assembling instructions by pictorial representations
Assignee: AT&T Inc
•
Filing: 1957-06-17
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Granted: 1959-12-22
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Expires: 1977-06-17
Abstract
No abstract record available.
Inventors
- 👤 Chester J Butler
- 👤 Lawrence D Ermish
- 👤 Jr John W Linsley
- 👤 Donald F Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:57
CPC Classifications
H; H05; H05K; H05K13/00; H05K13/0053; G; G09; G09B; G09B23/00; G09B23/06; G09B23/18; G09B23/183; G09B23/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1857587A
Cited
US2682117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |