Patent US3416231A successfully refreshed from Google Patents.
US3416231A
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US
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Drawing device
Assignee: JOHN N MERCORELLI
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Filing: 1967-06-07
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Granted: 1968-12-17
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Expires: 1987-06-07
Abstract
No abstract record available.
Inventors
- 👤 John N Mercorelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:58
CPC Classifications
B; B43; B43L; B43L1/00; B43L1/008; A; A63; A63H; A63H33/00; A63H33/22; B44; B44D; B44D3/00; B44D3/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3055113A
Cited
US3114547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |