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Patent US2671947A successfully refreshed from Google Patents.
US2671947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saw blade for cutting printing plates and other printing materials
Assignee: Hammond Machinery Builders Inc
•
Filing: 1951-01-29
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Granted: 1954-03-16
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Expires: 1971-01-29
Abstract
No abstract record available.
Inventors
- 👤 Linde Adrian L Vander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:03
CPC Classifications
B; B23; B23D; B23D45/00; B23D45/06; B23D45/068; B23D61/00; B23D61/02; B23D61/021; B23D61/0212; B23D61/04; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9319; Y10T83/936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1861218A
Cited
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Cited
GB537764A
Cited
GB578519A
Cited
US2407501A
Cited
GB601520A
Cited
US2528226A
Cited
US2600272A
Cited
GB703369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |