US3519788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic registration of an electron beam
Assignee: International Business Machines Corp
•
Filing: 1967-01-13
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Granted: 1970-07-07
•
Expires: 1987-01-13
Abstract
No abstract record available.
Inventors
- 👤 Michael Hatzakis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:45
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/304; H01J37/3045; B; B23; B23K; B23K15/00; B23K15/02; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2499178A
Cited
US3245794A
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US3308264A
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US3389382A
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US3326176A
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US3426174A
Cited
US3408474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |