US2538520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Application of thermoplastic tape
Assignee: Spinnaker Coating Inc
•
Filing: 1948-07-19
•
Granted: 1951-01-16
•
Expires: 1968-07-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick W Holt
- 👤 Charles F Howard
- 👤 David E Bench
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:52
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/60; B31B50/72; B31B50/726; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1084; Y10T156/1085; Y10T156/12; Y10T156/1317; Y10T156/1343; Y10T83/00; Y10T83/343
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1443784A
Cited
US2129686A
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US2159993A
Cited
US2123415A
Cited
US2248744A
Cited
US2435267A
Cited
US2449298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-15 | 1954-07-17 | 1955-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-15 | 1958-07-17 | 1959-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-15 | 1962-07-17 | 1963-01-16 | $7700.00 | Window Closed / Lapsed |