US3470058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed plastic structures
Assignee: Pullman Inc
•
Filing: 1964-06-01
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Granted: 1969-09-30
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Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 George R Heffner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:33
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/20; B62; B62D; B62D29/00; B62D29/04; B62D29/043; B62D29/045; E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/20; E04C2/205; E04C2/24; E04C2/243; E04C2/30; E04C2/34; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/233; Y10T428/24; Y10T428/24174
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2477852A
Cited
US2744042A
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GB772181A
Cited
US3003810A
Cited
US2910730A
Cited
US2923384A
Cited
US2973295A
Cited
US3226899A
Cited
US3231439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |