Patent US4316534A successfully refreshed from Google Patents.
Patent US3038507A successfully refreshed from Google Patents.
US3038507A
Expired / Lapsed
US
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Metering device for plastic material
Assignee: Watts Electric and Manufacturing Co
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Filing: 1958-05-19
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Granted: 1962-06-12
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Expires: 1978-05-19
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:19
CPC Classifications
B; B29; B29C; B29C31/00; B29C31/008; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/44; B21D51/46; B29C31/04; B29C31/041; B29C70/00; B29C70/68; B29C70/78; B29C70/80; B29C43/00; B29C43/32; B29C43/34; B29C2043/3433; B29C43/02; B29C43/18; B29L; B29L2031/00; B29L2031/56; B29L2031/565
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1440669A
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US1926343A
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US2096499A
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US2413916A
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US2645401A
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US2492873A
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US2905363A
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US2839226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |