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US2938252A
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US
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Assignee: Individual
•
Filing: 1958-02-21
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Granted: 1960-05-31
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Expires: 1978-02-21
Abstract
No abstract record available.
Inventors
- 👤 Scheemaeker Emile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:34
CPC Classifications
B; B42; B42F; B42F1/00; B42F1/02; Y; Y10; Y10T; Y10T24/00; Y10T24/20; Y10T24/202; Y10T24/205; Y10T24/44; Y10T24/44641; Y10T24/44769; Y10T24/44778; Y10T24/44786; Y10T24/44923
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1193421A
Cited
GB189322420A
Cited
GB190317930A
Cited
US802262A
Cited
US1160190A
Cited
US1342698A
Cited
US1632856A
Cited
US1770914A
Cited
GB584761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |