Patent US3435186A successfully refreshed from Google Patents.
US3435186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective piercing and machining of sheet material
Assignee: International Business Machines Corp
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Filing: 1966-05-16
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Granted: 1969-03-25
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Expires: 1986-05-16
Abstract
No abstract record available.
Inventors
- 👤 David D Roshon Jr
- 👤 Thomas Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:46
CPC Classifications
G; G06; G06K; G06K1/00; G06K1/12; G06K1/126; B; B23; B23K; B23K15/00; B23K15/08; B23K26/00; B23K26/20; B23K26/36; B23K26/38; B23K26/382; B23K26/40; H; H05; H05K; H05K3/00; H05K3/02; H05K3/027; B23K2103/00; B23K2103/30; B23K2103/40; B23K2103/50; B23K2103/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3074809A
Cited
US3183518A
Cited
US3154371A
Cited
US3262122A
Cited
US3266393A
Cited
US3256524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |