Patent US3529054A successfully refreshed from Google Patents.
US3529054A
Expired / Lapsed
US
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Method for fabricating printing drums
Assignee: Unisys Corp
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Filing: 1967-11-15
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Granted: 1970-09-15
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Expires: 1987-11-15
Abstract
No abstract record available.
Inventors
- 👤 Neal Hepner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:49
CPC Classifications
B; B41; B41J; B41J1/00; B41J1/22; B41J1/32; B29; B29C; B29C41/00; B29C41/02; B29C41/20
Claims Analysis
Total Claims: 0
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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) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |