Patent US3027831A successfully refreshed from Google Patents.
US3027831A
Expired / Lapsed
US
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Rotary photogravure printing apparatus
Assignee: James Halley and Sons Ltd
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Filing: 1958-07-01
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Granted: 1962-04-03
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Expires: 1978-07-01
Abstract
No abstract record available.
Inventors
- 👤 Stapleford Leonard Ernest
- 👤 Halley Angus Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:50
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/08; B41F13/24; B41F13/34; B41F13/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2138142A
Cited
US2208688A
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US2601220A
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US2787954A
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US2870706A
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US2818804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |