US2903544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating
Assignee: WC Heraus GmbH and Co KG
•
Filing: 1956-04-18
•
Granted: 1959-09-08
•
Expires: 1976-04-18
Abstract
No abstract record available.
Inventors
- 👤 Reichelt Walter
- 👤 Schmeken Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:21
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/26; C22; C22C; C22C32/00; C22C32/001; C22C32/0015; C22C32/0031; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12361
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1074333A
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US1461118A
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US2356237A
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US2557530A
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US2622304A
Cited
US2615060A
Cited
US2693521A
Cited
US2845515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |