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US2766529A
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Pantograph
Assignee: Precision Grinding Ltd
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Filing: 1953-04-09
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Granted: 1956-10-16
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Expires: 1973-04-09
Abstract
No abstract record available.
Inventors
- 👤 Dwyer James Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:31
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/10; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301232
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US118902A
Cited
US538776A
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US1235668A
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US1365868A
Cited
GB418135A
Cited
GB487634A
Cited
US2178131A
Cited
US2626540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |