US3529337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a pole structure
Assignee: PFAFF AND KENDALL
•
Filing: 1968-02-01
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Granted: 1970-09-22
•
Expires: 1988-02-01
Abstract
No abstract record available.
Inventors
- 👤 Henry C Pfaff Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:00
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/154; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49631; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR822983A
Cited
US2219434A
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US2293491A
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US2609595A
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US2742946A
Cited
US3137066A
Cited
US3098285A
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US3152820A
Cited
US3186064A
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US3317222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |