Patent US2906447A successfully refreshed from Google Patents.
US2906447A
Expired / Lapsed
US
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Inflation equipment
Assignee: Specialties Development Corp
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Filing: 1956-03-30
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Granted: 1959-09-29
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Expires: 1976-03-30
Abstract
No abstract record available.
Inventors
- 👤 Seed Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:25
CPC Classifications
F; F04; F04D; F04D19/00; F04D19/02; F04D19/024; F04D25/00; F04D25/02; F04D25/04; F04D25/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US910036A
Cited
US958768A
Cited
FR411473A
Cited
US2007777A
Cited
US2271627A
Cited
US2399670A
Cited
US2693905A
Cited
US2684784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |