US3511738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow structural members and method of treating an interior surface thereof
Assignee: Individual
•
Filing: 1966-06-13
•
Granted: 1970-05-12
•
Expires: 1986-06-13
Abstract
No abstract record available.
Inventors
- 👤 John S Mcguire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:07
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C44/00; B29C44/02; B29C44/04; B29C44/0423; B29C44/043; B29C44/12; B29C44/129; B29C37/00; B29C37/0025; B29C37/0028; B29C41/00; B29C41/02; B29C41/04; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/233
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3126311A
Cited
US2916399A
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US2862806A
Cited
US2948651A
Cited
US3052927A
Cited
US2991208A
Cited
GB930362A
Cited
US3391823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |