Patent US2938247A successfully refreshed from Google Patents.
US2938247A
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Assignee: Adlake Co
•
Filing: 1956-07-20
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Granted: 1960-05-31
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Expires: 1976-07-20
Abstract
No abstract record available.
Inventors
- 👤 Andrew T Hagerty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:34
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/40; E05; E05D; E05D7/00; E05D7/08; E05D7/082; E05D7/083; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US601081A
Cited
US938193A
Cited
US1049392A
Cited
US2699825A
Cited
US2804181A
Cited
US2758344A
Cited
US2812557A
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 |